From 40a355a42d4a9444dc753c04c6608dade2f06a23 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 03:13:27 +0200
Subject: Adding upstream version 125.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 layout/reftests/mathml/largeop-1-ref.html          |   0
 layout/reftests/mathml/largeop-1.html              |   0
 .../mathml/mathml-mmultiscript-base-ref.html       |  14 --
 .../reftests/mathml/mathml-mmultiscript-base.html  |  16 ---
 .../mathml/mathml-mmultiscript-mprescript-ref.html |  15 --
 .../mathml/mathml-mmultiscript-mprescript.html     |  18 ---
 layout/reftests/mathml/mirror-op-1-ref.html        |  19 ---
 layout/reftests/mathml/mirror-op-1.html            |  14 --
 layout/reftests/mathml/mirror-op-2-ref.html        |   9 --
 layout/reftests/mathml/mirror-op-2.html            |   9 --
 layout/reftests/mathml/mirror-op-3-ref.html        |   9 --
 layout/reftests/mathml/mirror-op-3.html            |   9 --
 layout/reftests/mathml/mirror-op-4-ref.html        |   9 --
 layout/reftests/mathml/mirror-op-4.html            |   9 --
 layout/reftests/mathml/mmultiscript-align-ref.html |  42 ------
 layout/reftests/mathml/mmultiscript-align.html     |  38 -----
 layout/reftests/mathml/mo-glyph-size-ref.html      |  14 --
 layout/reftests/mathml/mo-glyph-size.html          |  50 -------
 layout/reftests/mathml/mpadded-7-ref.html          |  15 --
 layout/reftests/mathml/mpadded-7.html              |  16 ---
 layout/reftests/mathml/mpadded-8-ref.html          |  15 --
 layout/reftests/mathml/mpadded-8.html              |  16 ---
 layout/reftests/mathml/mpadded-9-ref.html          |  15 --
 layout/reftests/mathml/mpadded-9.html              |  16 ---
 layout/reftests/mathml/mstyle-2-ref.xhtml          | 110 ---------------
 layout/reftests/mathml/mstyle-2.xhtml              | 113 ---------------
 layout/reftests/mathml/mstyle-3-ref.xhtml          | 133 ------------------
 layout/reftests/mathml/mstyle-3.xhtml              | 136 ------------------
 layout/reftests/mathml/mstyle-4-ref.xhtml          |  75 ----------
 layout/reftests/mathml/mstyle-4.xhtml              |  78 -----------
 layout/reftests/mathml/multiscripts-1-ref.html     |  71 ----------
 layout/reftests/mathml/multiscripts-1.html         |  71 ----------
 .../munder-mover-align-accent-false-ref.html       | 114 ---------------
 .../mathml/munder-mover-align-accent-false.html    |  98 -------------
 .../mathml/munder-mover-align-accent-true-ref.html | 114 ---------------
 .../mathml/munder-mover-align-accent-true.html     |  98 -------------
 .../mathml/munderover-align-accent-false-ref.html  | 132 -----------------
 .../mathml/munderover-align-accent-false.html      | 104 --------------
 .../mathml/munderover-align-accent-true-ref.html   | 132 -----------------
 .../mathml/munderover-align-accent-true.html       | 104 --------------
 .../mathml/munderover-empty-scripts-ref.html       |  35 -----
 .../reftests/mathml/munderover-empty-scripts.html  |  32 -----
 layout/reftests/mathml/overbar-width-1-ref.xhtml   |  26 ----
 layout/reftests/mathml/overbar-width-1.xhtml       |  25 ----
 layout/reftests/mathml/radicalbar-1.html           |  48 -------
 layout/reftests/mathml/radicalbar-1a.html          |  48 -------
 layout/reftests/mathml/radicalbar-1b.html          |  48 -------
 layout/reftests/mathml/radicalbar-1c.html          |  48 -------
 layout/reftests/mathml/radicalbar-1d.html          |  48 -------
 layout/reftests/mathml/radicalbar-2.html           |  47 -------
 layout/reftests/mathml/radicalbar-2a.html          |  47 -------
 layout/reftests/mathml/radicalbar-2b.html          |  47 -------
 layout/reftests/mathml/radicalbar-2c.html          |  47 -------
 layout/reftests/mathml/radicalbar-2d.html          |  47 -------
 layout/reftests/mathml/radicalbar-3.html           |  47 -------
 layout/reftests/mathml/radicalbar-3a.html          |  47 -------
 layout/reftests/mathml/radicalbar-3b.html          |  47 -------
 layout/reftests/mathml/radicalbar-3c.html          |  47 -------
 layout/reftests/mathml/radicalbar-3d.html          |  47 -------
 layout/reftests/mathml/reftest.list                |  55 --------
 layout/reftests/mathml/scale-stretchy-1-ref.xhtml  |  26 ----
 layout/reftests/mathml/scale-stretchy-1.xhtml      |  41 ------
 layout/reftests/mathml/scale-stretchy-2-ref.xhtml  |  26 ----
 layout/reftests/mathml/scale-stretchy-2.xhtml      |  41 ------
 layout/reftests/mathml/scale-stretchy-3-ref.xhtml  |  27 ----
 layout/reftests/mathml/scale-stretchy-3.xhtml      |  43 ------
 layout/reftests/mathml/scale-stretchy-4-ref.xhtml  |  27 ----
 layout/reftests/mathml/scale-stretchy-4.xhtml      |  43 ------
 layout/reftests/mathml/scale-stretchy-5-ref.xhtml  |  14 --
 layout/reftests/mathml/scale-stretchy-5.xhtml      |  14 --
 .../mathml/scriptlevel-movablelimits-1-ref.html    |  25 ----
 .../mathml/scriptlevel-movablelimits-1.html        |  25 ----
 layout/reftests/mathml/semantics-1-ref.xhtml       |  66 ---------
 layout/reftests/mathml/semantics-1.xhtml           |  66 ---------
 layout/reftests/mathml/semantics-2-ref.html        |  19 ---
 layout/reftests/mathml/semantics-2.html            |  19 ---
 layout/reftests/mathml/semantics-3-ref.html        |  21 ---
 layout/reftests/mathml/semantics-3.html            |  21 ---
 layout/reftests/mathml/semantics-5-ref.html        |  17 ---
 layout/reftests/mathml/semantics-5.html            |  17 ---
 layout/reftests/mathml/stretchy-1-ref.html         |  14 --
 layout/reftests/mathml/stretchy-1.html             |  14 --
 layout/reftests/mathml/stretchy-largeop-1-ref.html |  56 --------
 layout/reftests/mathml/stretchy-largeop-1.html     |  81 -----------
 layout/reftests/mathml/stretchy-largeop-2-ref.html | 111 ---------------
 layout/reftests/mathml/stretchy-largeop-2.html     | 137 ------------------
 layout/reftests/mathml/stretchy-largeop-3-ref.html | 123 ----------------
 layout/reftests/mathml/stretchy-largeop-3.html     | 156 ---------------------
 .../mathml/subscript-italic-correction-ref.html    |  36 -----
 .../mathml/subscript-italic-correction.html        |  61 --------
 layout/reftests/mathml/underbar-width-1-ref.xhtml  |  26 ----
 layout/reftests/mathml/underbar-width-1.xhtml      |  25 ----
 92 files changed, 4391 deletions(-)
 delete mode 100644 layout/reftests/mathml/largeop-1-ref.html
 delete mode 100644 layout/reftests/mathml/largeop-1.html
 delete mode 100644 layout/reftests/mathml/mathml-mmultiscript-base-ref.html
 delete mode 100644 layout/reftests/mathml/mathml-mmultiscript-base.html
 delete mode 100644 layout/reftests/mathml/mathml-mmultiscript-mprescript-ref.html
 delete mode 100644 layout/reftests/mathml/mathml-mmultiscript-mprescript.html
 delete mode 100644 layout/reftests/mathml/mirror-op-1-ref.html
 delete mode 100644 layout/reftests/mathml/mirror-op-1.html
 delete mode 100644 layout/reftests/mathml/mirror-op-2-ref.html
 delete mode 100644 layout/reftests/mathml/mirror-op-2.html
 delete mode 100644 layout/reftests/mathml/mirror-op-3-ref.html
 delete mode 100644 layout/reftests/mathml/mirror-op-3.html
 delete mode 100644 layout/reftests/mathml/mirror-op-4-ref.html
 delete mode 100644 layout/reftests/mathml/mirror-op-4.html
 delete mode 100644 layout/reftests/mathml/mmultiscript-align-ref.html
 delete mode 100644 layout/reftests/mathml/mmultiscript-align.html
 delete mode 100644 layout/reftests/mathml/mo-glyph-size-ref.html
 delete mode 100644 layout/reftests/mathml/mo-glyph-size.html
 delete mode 100644 layout/reftests/mathml/mpadded-7-ref.html
 delete mode 100644 layout/reftests/mathml/mpadded-7.html
 delete mode 100644 layout/reftests/mathml/mpadded-8-ref.html
 delete mode 100644 layout/reftests/mathml/mpadded-8.html
 delete mode 100644 layout/reftests/mathml/mpadded-9-ref.html
 delete mode 100644 layout/reftests/mathml/mpadded-9.html
 delete mode 100644 layout/reftests/mathml/mstyle-2-ref.xhtml
 delete mode 100644 layout/reftests/mathml/mstyle-2.xhtml
 delete mode 100644 layout/reftests/mathml/mstyle-3-ref.xhtml
 delete mode 100644 layout/reftests/mathml/mstyle-3.xhtml
 delete mode 100644 layout/reftests/mathml/mstyle-4-ref.xhtml
 delete mode 100644 layout/reftests/mathml/mstyle-4.xhtml
 delete mode 100644 layout/reftests/mathml/multiscripts-1-ref.html
 delete mode 100644 layout/reftests/mathml/multiscripts-1.html
 delete mode 100644 layout/reftests/mathml/munder-mover-align-accent-false-ref.html
 delete mode 100644 layout/reftests/mathml/munder-mover-align-accent-false.html
 delete mode 100644 layout/reftests/mathml/munder-mover-align-accent-true-ref.html
 delete mode 100644 layout/reftests/mathml/munder-mover-align-accent-true.html
 delete mode 100644 layout/reftests/mathml/munderover-align-accent-false-ref.html
 delete mode 100644 layout/reftests/mathml/munderover-align-accent-false.html
 delete mode 100644 layout/reftests/mathml/munderover-align-accent-true-ref.html
 delete mode 100644 layout/reftests/mathml/munderover-align-accent-true.html
 delete mode 100644 layout/reftests/mathml/munderover-empty-scripts-ref.html
 delete mode 100644 layout/reftests/mathml/munderover-empty-scripts.html
 delete mode 100644 layout/reftests/mathml/overbar-width-1-ref.xhtml
 delete mode 100644 layout/reftests/mathml/overbar-width-1.xhtml
 delete mode 100644 layout/reftests/mathml/radicalbar-1.html
 delete mode 100644 layout/reftests/mathml/radicalbar-1a.html
 delete mode 100644 layout/reftests/mathml/radicalbar-1b.html
 delete mode 100644 layout/reftests/mathml/radicalbar-1c.html
 delete mode 100644 layout/reftests/mathml/radicalbar-1d.html
 delete mode 100644 layout/reftests/mathml/radicalbar-2.html
 delete mode 100644 layout/reftests/mathml/radicalbar-2a.html
 delete mode 100644 layout/reftests/mathml/radicalbar-2b.html
 delete mode 100644 layout/reftests/mathml/radicalbar-2c.html
 delete mode 100644 layout/reftests/mathml/radicalbar-2d.html
 delete mode 100644 layout/reftests/mathml/radicalbar-3.html
 delete mode 100644 layout/reftests/mathml/radicalbar-3a.html
 delete mode 100644 layout/reftests/mathml/radicalbar-3b.html
 delete mode 100644 layout/reftests/mathml/radicalbar-3c.html
 delete mode 100644 layout/reftests/mathml/radicalbar-3d.html
 delete mode 100644 layout/reftests/mathml/reftest.list
 delete mode 100644 layout/reftests/mathml/scale-stretchy-1-ref.xhtml
 delete mode 100644 layout/reftests/mathml/scale-stretchy-1.xhtml
 delete mode 100644 layout/reftests/mathml/scale-stretchy-2-ref.xhtml
 delete mode 100644 layout/reftests/mathml/scale-stretchy-2.xhtml
 delete mode 100644 layout/reftests/mathml/scale-stretchy-3-ref.xhtml
 delete mode 100644 layout/reftests/mathml/scale-stretchy-3.xhtml
 delete mode 100644 layout/reftests/mathml/scale-stretchy-4-ref.xhtml
 delete mode 100644 layout/reftests/mathml/scale-stretchy-4.xhtml
 delete mode 100644 layout/reftests/mathml/scale-stretchy-5-ref.xhtml
 delete mode 100644 layout/reftests/mathml/scale-stretchy-5.xhtml
 delete mode 100644 layout/reftests/mathml/scriptlevel-movablelimits-1-ref.html
 delete mode 100644 layout/reftests/mathml/scriptlevel-movablelimits-1.html
 delete mode 100644 layout/reftests/mathml/semantics-1-ref.xhtml
 delete mode 100644 layout/reftests/mathml/semantics-1.xhtml
 delete mode 100644 layout/reftests/mathml/semantics-2-ref.html
 delete mode 100644 layout/reftests/mathml/semantics-2.html
 delete mode 100644 layout/reftests/mathml/semantics-3-ref.html
 delete mode 100644 layout/reftests/mathml/semantics-3.html
 delete mode 100644 layout/reftests/mathml/semantics-5-ref.html
 delete mode 100644 layout/reftests/mathml/semantics-5.html
 delete mode 100644 layout/reftests/mathml/stretchy-1-ref.html
 delete mode 100644 layout/reftests/mathml/stretchy-1.html
 delete mode 100644 layout/reftests/mathml/stretchy-largeop-1-ref.html
 delete mode 100644 layout/reftests/mathml/stretchy-largeop-1.html
 delete mode 100644 layout/reftests/mathml/stretchy-largeop-2-ref.html
 delete mode 100644 layout/reftests/mathml/stretchy-largeop-2.html
 delete mode 100644 layout/reftests/mathml/stretchy-largeop-3-ref.html
 delete mode 100644 layout/reftests/mathml/stretchy-largeop-3.html
 delete mode 100644 layout/reftests/mathml/subscript-italic-correction-ref.html
 delete mode 100644 layout/reftests/mathml/subscript-italic-correction.html
 delete mode 100644 layout/reftests/mathml/underbar-width-1-ref.xhtml
 delete mode 100644 layout/reftests/mathml/underbar-width-1.xhtml

(limited to 'layout/reftests/mathml')

diff --git a/layout/reftests/mathml/largeop-1-ref.html b/layout/reftests/mathml/largeop-1-ref.html
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/layout/reftests/mathml/largeop-1.html b/layout/reftests/mathml/largeop-1.html
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/layout/reftests/mathml/mathml-mmultiscript-base-ref.html b/layout/reftests/mathml/mathml-mmultiscript-base-ref.html
deleted file mode 100644
index 45f43e9f9b..0000000000
--- a/layout/reftests/mathml/mathml-mmultiscript-base-ref.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!DOCTYPE html>
-<html>
-	<head>
-		<title>mmultiscript with only base</title>
-	</head>
-	
-	<body>
-		<math>
-			<mmultiscripts>
-			<mtext>base</mtext>
-			</mmultiscripts>
-		</math>
-	</body>
-</html>
diff --git a/layout/reftests/mathml/mathml-mmultiscript-base.html b/layout/reftests/mathml/mathml-mmultiscript-base.html
deleted file mode 100644
index f2832df479..0000000000
--- a/layout/reftests/mathml/mathml-mmultiscript-base.html
+++ /dev/null
@@ -1,16 +0,0 @@
-<!DOCTYPE html>
-<html>
-	<head>
-		<title>mmultiscript with only base and none as placeholder</title>
-	</head>
-
-	<body>
-		<math> 
-			<mmultiscripts>
-				<mtext>base</mtext>
-				<none/>
-				<none/>
-			</mmultiscripts>
-		</math>
-	</body>
-</html>
diff --git a/layout/reftests/mathml/mathml-mmultiscript-mprescript-ref.html b/layout/reftests/mathml/mathml-mmultiscript-mprescript-ref.html
deleted file mode 100644
index b30e7fb976..0000000000
--- a/layout/reftests/mathml/mathml-mmultiscript-mprescript-ref.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<!DOCTYPE html>
-<html>
-	<head>
-		<title>mmultiscript with mprescripts without none</title>
-	</head>
-
-	<body>
-		<math> 
-			<mmultiscripts>
-				<mtext>base</mtext>
-				<mprescripts/>
-			</mmultiscripts>
-		</math>
-	</body>
-</html>
diff --git a/layout/reftests/mathml/mathml-mmultiscript-mprescript.html b/layout/reftests/mathml/mathml-mmultiscript-mprescript.html
deleted file mode 100644
index 5bc0b5a5ad..0000000000
--- a/layout/reftests/mathml/mathml-mmultiscript-mprescript.html
+++ /dev/null
@@ -1,18 +0,0 @@
-<!DOCTYPE html>
-<html>
-	<head>
-		<title>mmultiscript with mprescripts with none as placeholders</title>
-	</head>
-	
-	<body>
-		<math>
-			<mmultiscripts>
-				<mtext>base</mtext>
-				<none/>
-				<none/>
-				<mprescripts/>
-			</mmultiscripts>
-
-		</math>
-	</body>
-</html>
diff --git a/layout/reftests/mathml/mirror-op-1-ref.html b/layout/reftests/mathml/mirror-op-1-ref.html
deleted file mode 100644
index d7515156c3..0000000000
--- a/layout/reftests/mathml/mirror-op-1-ref.html
+++ /dev/null
@@ -1,19 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title>Test mirror op</title></head>
-  <style type="text/css">
-    mo {
-      transform: scaleX(-1.0);
-    }
-  </style>
-  <body>
-
-    <p><math><mo>(</mo></math></p>
-    <p><math><mo>)</mo></math></p>
-    <p><math><mo>[</mo></math></p>
-    <p><math><mo>]</mo></math></p>
-    <p><math><mo>{</mo></math></p>
-    <p><math><mo>}</mo></math></p>
-    
-  </body>
-</html>
diff --git a/layout/reftests/mathml/mirror-op-1.html b/layout/reftests/mathml/mirror-op-1.html
deleted file mode 100644
index bb59e16c23..0000000000
--- a/layout/reftests/mathml/mirror-op-1.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title>Test mirror op</title></head>
-  <body>
-
-    <p><math dir="rtl"><mo>(</mo></math></p>
-    <p><math dir="rtl"><mo>)</mo></math></p>
-    <p><math dir="rtl"><mo>[</mo></math></p>
-    <p><math dir="rtl"><mo>]</mo></math></p>
-    <p><math dir="rtl"><mo>{</mo></math></p>
-    <p><math dir="rtl"><mo>}</mo></math></p>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/mirror-op-2-ref.html b/layout/reftests/mathml/mirror-op-2-ref.html
deleted file mode 100644
index c67710cca6..0000000000
--- a/layout/reftests/mathml/mirror-op-2-ref.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title>Test mirror op</title></head>
-  <body>
-
-    <p><math display="block"><mo>&#x2211;</mo></math></p>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/mirror-op-2.html b/layout/reftests/mathml/mirror-op-2.html
deleted file mode 100644
index 5db6819cfe..0000000000
--- a/layout/reftests/mathml/mirror-op-2.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title>Test mirror op</title></head>
-  <body>
-
-    <p><math display="block" dir="rtl"><mo>&#x2211;</mo></math></p>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/mirror-op-3-ref.html b/layout/reftests/mathml/mirror-op-3-ref.html
deleted file mode 100644
index fc3a183ef3..0000000000
--- a/layout/reftests/mathml/mirror-op-3-ref.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title>Test mirror op</title></head>
-  <body>
-
-    <p><math display="block"><mo>&#x221A;</mo></math></p>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/mirror-op-3.html b/layout/reftests/mathml/mirror-op-3.html
deleted file mode 100644
index 501af10926..0000000000
--- a/layout/reftests/mathml/mirror-op-3.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title>Test mirror op</title></head>
-  <body>
-
-    <p><math display="block" dir="rtl"><mo>&#x221A;</mo></math></p>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/mirror-op-4-ref.html b/layout/reftests/mathml/mirror-op-4-ref.html
deleted file mode 100644
index 6c39a47a33..0000000000
--- a/layout/reftests/mathml/mirror-op-4-ref.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title>Test mirror op</title></head>
-  <body>
-
-    <p><math display="block"><mo>&#x222B;</mo></math></p>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/mirror-op-4.html b/layout/reftests/mathml/mirror-op-4.html
deleted file mode 100644
index ba1acf89f7..0000000000
--- a/layout/reftests/mathml/mirror-op-4.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title>Test mirror op</title></head>
-  <body>
-
-    <p><math display="block" dir="rtl"><mo>&#x222B;</mo></math></p>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/mmultiscript-align-ref.html b/layout/reftests/mathml/mmultiscript-align-ref.html
deleted file mode 100644
index 337852837f..0000000000
--- a/layout/reftests/mathml/mmultiscript-align-ref.html
+++ /dev/null
@@ -1,42 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>alignment of mmultiscript sub/superscripts</title>
-  </head>
-
-  <body>
-    <math>
-      <mmultiscripts>
-        <mspace width="50px" height="50px" mathbackground="red"/>
-        <mrow>
-          <mspace width="50px" height="10px" mathbackground="blue"/>
-          <mspace width="50px" height="10px"/>
-        </mrow>
-        <mspace width="100px" height="10px" mathbackground="green"/>
-        <mprescripts/>
-        <mrow>
-          <mspace width="50px" height="10px"/>
-          <mspace width="50px" height="10px" mathbackground="blue"/>
-        </mrow>
-        <mspace width="100px" height="10px" mathbackground="green"/>
-      </mmultiscripts>
-    </math>
-    <br/>
-    <math>
-      <mmultiscripts>
-        <mspace width="50px" height="50px" mathbackground="red"/>
-        <mspace width="100px" height="10px" mathbackground="green"/>
-        <mrow>
-          <mspace width="50px" height="10px" mathbackground="blue"/>
-          <mspace width="50px" height="10px"/>
-        </mrow>
-        <mprescripts/>
-        <mspace width="100px" height="10px" mathbackground="green"/>
-        <mrow>
-          <mspace width="50px" height="10px"/>
-          <mspace width="50px" height="10px" mathbackground="blue"/>
-        </mrow>
-      </mmultiscripts>
-    </math>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/mmultiscript-align.html b/layout/reftests/mathml/mmultiscript-align.html
deleted file mode 100644
index 44fb713a34..0000000000
--- a/layout/reftests/mathml/mmultiscript-align.html
+++ /dev/null
@@ -1,38 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>alignment of mmultiscript sub/superscripts</title>
-  </head>
-
-  <body>
-    <math>
-      <mmultiscripts>
-        <mspace width="50px" height="50px" mathbackground="red"/>
-        <mrow>
-          <mspace width="50px" height="10px" mathbackground="blue"/>
-        </mrow>
-        <mspace width="100px" height="10px" mathbackground="green"/>
-        <mprescripts/>
-        <mrow>
-          <mspace width="50px" height="10px" mathbackground="blue"/>
-        </mrow>
-        <mspace width="100px" height="10px" mathbackground="green"/>
-      </mmultiscripts>
-    </math>
-    <br/>
-    <math>
-      <mmultiscripts>
-        <mspace width="50px" height="50px" mathbackground="red"/>
-        <mspace width="100px" height="10px" mathbackground="green"/>
-        <mrow>
-          <mspace width="50px" height="10px" mathbackground="blue"/>
-        </mrow>
-        <mprescripts/>
-        <mspace width="100px" height="10px" mathbackground="green"/>
-        <mrow>
-          <mspace width="50px" height="10px" mathbackground="blue"/>
-        </mrow>
-      </mmultiscripts>
-    </math>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/mo-glyph-size-ref.html b/layout/reftests/mathml/mo-glyph-size-ref.html
deleted file mode 100644
index e4dd43747e..0000000000
--- a/layout/reftests/mathml/mo-glyph-size-ref.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="UTF-8">
-</head>
-<body>
-<!-- Bug 1219068 -->
-
-<div id="hider"
-     style="position:absolute; top:0; left:0; background-color:green;
-            height:1em; width:100%; z-index:1; padding-top:5px;
-            padding-bottom:5px;" />
-</body>
-</html>
diff --git a/layout/reftests/mathml/mo-glyph-size.html b/layout/reftests/mathml/mo-glyph-size.html
deleted file mode 100644
index c0cc726daf..0000000000
--- a/layout/reftests/mathml/mo-glyph-size.html
+++ /dev/null
@@ -1,50 +0,0 @@
-<!DOCTYPE html>
-<html class="reftest-wait">
-<head>
-<meta charset="UTF-8">
-</head>
-<body>
-<!-- Bug 1219068 -->
-
-<math style="position:absolute; top: 0; font-size:1em;  z-index: 0;" display="block">
-<mrow>
-  <mo>|</mo>
-  <mrow>
-    <mi>f</mi>
-    <mrow>
-      <mn>(</mn>
-      <mi>x</mi>
-      <mn>)</mn>
-    </mrow>
-    <mn>-</mn>
-    <mrow>
-      <mi>f</mi>
-      <mrow>
-        <mn>(</mn>
-        <msub>
-          <mi>x</mi>
-          <mn>0</mn>
-        </msub>
-        <mn>)</mn>
-      </mrow>
-    </mrow>
-  </mrow>
-  <mo>|</mo>
-</mrow>
-</math>
-<div id="hider"
-     style="position:absolute; top:0; left:0; background-color:green;
-            height:1em; width:100%; z-index:1; padding-top:5px;
-            padding-bottom:5px; visibility:hidden" />
-  <script>
-    function obscureMathML() {
-      var hider = document.getElementById("hider");
-      hider.style.visibility="visible";
-      // The math should now be completely obscured
-
-      document.documentElement.removeAttribute("class");
-    }
-    window.addEventListener("MozReftestInvalidate", obscureMathML);
-  </script>
-</body>
-</html>
diff --git a/layout/reftests/mathml/mpadded-7-ref.html b/layout/reftests/mathml/mpadded-7-ref.html
deleted file mode 100644
index 50f14246ee..0000000000
--- a/layout/reftests/mathml/mpadded-7-ref.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>Test mpadded</title>
-  </head>
-  <body>
-    <math>
-      <mpadded mathbackground="red" height="100height" depth="0">
-        <mphantom>
-          <mtext>&#x1D687;<!-- Mathematical Monospace Capital X --></mtext>
-        </mphantom>
-      </mpadded>
-    </math>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/mpadded-7.html b/layout/reftests/mathml/mpadded-7.html
deleted file mode 100644
index 94d51b5845..0000000000
--- a/layout/reftests/mathml/mpadded-7.html
+++ /dev/null
@@ -1,16 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>Test mpadded</title>
-  </head>
-  <body>
-    <math>
-      <!--height in term of height should not depend on the characters-->
-      <mpadded mathbackground="red" height="100height" depth="0">
-        <mphantom>
-          <mtext>&#x1D692;<!-- Mathematical Monospace Small I --></mtext>
-        </mphantom>
-      </mpadded>
-    </math>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/mpadded-8-ref.html b/layout/reftests/mathml/mpadded-8-ref.html
deleted file mode 100644
index e01e6498f2..0000000000
--- a/layout/reftests/mathml/mpadded-8-ref.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>Test mpadded</title>
-  </head>
-  <body>
-    <math>
-      <mpadded mathbackground="red" height="100width" depth="0">
-        <mphantom>
-          <mtext>&#x1D687;<!-- Mathematical Monospace Capital X --></mtext>
-        </mphantom>
-      </mpadded>
-    </math>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/mpadded-8.html b/layout/reftests/mathml/mpadded-8.html
deleted file mode 100644
index 4f203d4225..0000000000
--- a/layout/reftests/mathml/mpadded-8.html
+++ /dev/null
@@ -1,16 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>Test mpadded</title>
-  </head>
-  <body>
-    <math>
-      <!--height in term of width should not depend on the characters-->
-      <mpadded mathbackground="red" height="100width" depth="0">
-        <mphantom>
-          <mtext>&#x1D692;<!-- Mathematical Monospace Small I --></mtext>
-        </mphantom>
-      </mpadded>
-    </math>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/mpadded-9-ref.html b/layout/reftests/mathml/mpadded-9-ref.html
deleted file mode 100644
index e2a4943edd..0000000000
--- a/layout/reftests/mathml/mpadded-9-ref.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>Test mpadded</title>
-  </head>
-  <body>
-    <math>
-      <mpadded mathbackground="red" width="100width">
-        <mphantom>
-          <mtext>&#x1D687;<!-- Mathematical Monospace Capital X --></mtext>
-        </mphantom>
-      </mpadded>
-    </math>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/mpadded-9.html b/layout/reftests/mathml/mpadded-9.html
deleted file mode 100644
index 2b86721f50..0000000000
--- a/layout/reftests/mathml/mpadded-9.html
+++ /dev/null
@@ -1,16 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>Test mpadded</title>
-  </head>
-  <body>
-    <math>
-      <!--with fixed width, height + depth should not depend on the characters-->
-      <mpadded mathbackground="red" width="100width">
-        <mphantom>
-          <mtext>&#x1D692;<!-- Mathematical Monospace Small I --></mtext>
-        </mphantom>
-      </mpadded>
-    </math>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/mstyle-2-ref.xhtml b/layout/reftests/mathml/mstyle-2-ref.xhtml
deleted file mode 100644
index a8843780cb..0000000000
--- a/layout/reftests/mathml/mstyle-2-ref.xhtml
+++ /dev/null
@@ -1,110 +0,0 @@
-<?xml version="1.0" encoding="us-ascii"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-  <meta http-equiv="content-type"
-  content="application/xhtml+xml; charset=us-ascii" />
-  <title>Test mstyle</title>
-  <style type="text/css">
-    table { width: 100%;  border-collapse: collapse; }
-    td { border: solid black 1px; }
-  </style>
-</head>
-
-<body>
-
-<table>
-  <tbody>
-    <tr>
-      <td>mpadded: width</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <mstyle>
-            <mtext>_</mtext>
-            <mpadded/>
-            <mtext>_</mtext>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mpadded: lspace</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <mstyle>
-            <mtext>_</mtext>
-            <mpadded/>
-            <mtext>_</mtext>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mpadded: height</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <mstyle>
-            <msup>
-              <mrow>
-                <mtext>_</mtext>
-                <mpadded/>
-                <mtext>_</mtext>
-              </mrow>
-              <mtext>_</mtext>
-            </msup>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mpadded: depth</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <mstyle>
-            <msub>
-              <mrow>
-                <mtext>_</mtext>
-                <mpadded/>
-                <mtext>_</mtext>
-              </mrow>
-              <mtext>_</mtext>
-            </msub>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mspace: width</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <mstyle>
-            <mtext>_</mtext>
-            <mspace/>
-            <mtext>_</mtext>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mspace: height</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <mstyle>
-            <msup>
-              <mrow>
-                <mtext>_</mtext>
-                <mspace/>
-                <mtext>_</mtext>
-              </mrow>
-              <mtext>_</mtext>
-            </msup>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mspace: depth</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <mstyle>
-            <msub>
-              <mrow>
-                <mtext>_</mtext>
-                <mspace/>
-                <mtext>_</mtext>
-              </mrow>
-              <mtext>_</mtext>
-            </msub>
-          </mstyle>
-        </math></td>
-    </tr>
-  </tbody>
-</table>
-</body>
-</html>
diff --git a/layout/reftests/mathml/mstyle-2.xhtml b/layout/reftests/mathml/mstyle-2.xhtml
deleted file mode 100644
index f11f3ad8cd..0000000000
--- a/layout/reftests/mathml/mstyle-2.xhtml
+++ /dev/null
@@ -1,113 +0,0 @@
-<?xml version="1.0" encoding="us-ascii"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-  <meta http-equiv="content-type"
-  content="application/xhtml+xml; charset=us-ascii" />
-  <title>Test mstyle</title>
-  <style type="text/css">
-    table { width: 100%;  border-collapse: collapse; }
-    td { border: solid black 1px; }
-  </style>
-</head>
-
-<body>
-
-<!-- The attributes below should no longer have effect on <mstyle>/<math>
-     elements. See bug 838509 -->
-
-<table>
-  <tbody>
-    <tr>
-      <td>mpadded: width</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" width="1em">
-          <mstyle width="1em">
-            <mtext>_</mtext>
-            <mpadded/>
-            <mtext>_</mtext>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mpadded: lspace</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" lspace="1em">
-          <mstyle lspace="1em">
-            <mtext>_</mtext>
-            <mpadded/>
-            <mtext>_</mtext>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mpadded: height</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" height="1em">
-          <mstyle height="1em">
-            <msup>
-              <mrow>
-                <mtext>_</mtext>
-                <mpadded/>
-                <mtext>_</mtext>
-              </mrow>
-              <mtext>_</mtext>
-            </msup>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mpadded: depth</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" depth="1em">
-          <mstyle depth="1em">
-            <msub>
-              <mrow>
-                <mtext>_</mtext>
-                <mpadded/>
-                <mtext>_</mtext>
-              </mrow>
-              <mtext>_</mtext>
-            </msub>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mspace: width</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" width="1em">
-          <mstyle width="1em">
-            <mtext>_</mtext>
-            <mspace/>
-            <mtext>_</mtext>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mspace: height</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" height="1em">
-          <mstyle height="1em">
-            <msup>
-              <mrow>
-                <mtext>_</mtext>
-                <mspace/>
-                <mtext>_</mtext>
-              </mrow>
-              <mtext>_</mtext>
-            </msup>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mspace: depth</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" depth="1em">
-          <mstyle depth="1em">
-            <msub>
-              <mrow>
-                <mtext>_</mtext>
-                <mspace/>
-                <mtext>_</mtext>
-              </mrow>
-              <mtext>_</mtext>
-            </msub>
-          </mstyle>
-        </math></td>
-    </tr>
-  </tbody>
-</table>
-</body>
-</html>
diff --git a/layout/reftests/mathml/mstyle-3-ref.xhtml b/layout/reftests/mathml/mstyle-3-ref.xhtml
deleted file mode 100644
index 66c03f89ad..0000000000
--- a/layout/reftests/mathml/mstyle-3-ref.xhtml
+++ /dev/null
@@ -1,133 +0,0 @@
-<?xml version="1.0" encoding="us-ascii"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-  <meta http-equiv="content-type"
-  content="application/xhtml+xml; charset=us-ascii" />
-  <title>Test mstyle</title>
-  <style type="text/css">
-    table { width: 100%;  border-collapse: collapse; }
-    td { border: solid black 1px; }
-  </style>
-</head>
-
-<body>
-
-<table>
-  <tbody>
-    <tr>
-      <td>mo: form</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <mstyle>
-            <mrow>
-              <!-- We assume that the infix/postfix forms of _ do -->
-              <!-- not have the same lspace/rspace values in the operator dictionary -->
-              <mtext>_</mtext>
-              <mo>_</mo>
-              <mtext>_</mtext>
-            </mrow>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mo: lspace, rspace</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <mstyle>
-            <mrow>
-              <!-- We assume that the infix form of _ has -->
-              <!-- nonzero lspace/rspace values in the operator dictionary -->
-              <mtext>_</mtext>
-              <mo>_</mo>
-              <mtext>_</mtext>
-            </mrow>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mo: stretchy</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <mstyle>
-            <mover>
-              <!-- We assume that the arrow has stretchy=true in the operator dictionary -->
-              <mtext>abcd</mtext>
-              <mo>&#x2192;</mo>
-            </mover>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mo: accent</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <mstyle>
-            <mover>
-              <!-- We assume &#x23de; has accent=true in the operator dictionary -->
-              <mrow>
-                <mi>x</mi>
-                <mo>+</mo>
-                <mi>y</mi>
-                <mo>+</mo>
-                <mi>z</mi>
-              </mrow>
-              <mo>&#x23de;</mo>
-            </mover>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mo: maxsize</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <mstyle>
-            <mo>(</mo>
-            <mspace height="3em"/>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mo: minsize</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <mstyle>
-            <mo>(</mo>
-            <mspace height="1em"/>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mo: symmetric</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <!-- We assume that ( has symmetric=true in the operator dictionary -->
-          <mstyle>
-            <mtext>_</mtext>
-            <mo minsize="200%">(</mo>
-            <mtext>_</mtext>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mo: movablelimits</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <!-- We assume that &#x2211; has movablelimits=true in the operator dictionary -->
-          <mstyle>
-            <munderover>
-              <mo>&#x2211;</mo>
-              <mi>a</mi>
-              <mi>b</mi>
-            </munderover>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mo: largeop</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
-          <!-- We assume that &#x2211; has largeop=true in the operator dictionary -->
-          <mstyle>
-            <mo>&#x2211;</mo>
-          </mstyle>
-        </math></td>
-    </tr>
-    <!-- 
-            fence: This attribute generally has no direct effect on the visual rendering.
-            separator: This attribute generally has no direct effect on the visual rendering.
-      -->
-  </tbody>
-</table>
-</body>
-</html>
diff --git a/layout/reftests/mathml/mstyle-3.xhtml b/layout/reftests/mathml/mstyle-3.xhtml
deleted file mode 100644
index 4b395d3942..0000000000
--- a/layout/reftests/mathml/mstyle-3.xhtml
+++ /dev/null
@@ -1,136 +0,0 @@
-<?xml version="1.0" encoding="us-ascii"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-  <meta http-equiv="content-type"
-  content="application/xhtml+xml; charset=us-ascii" />
-  <title>Test mstyle</title>
-  <style type="text/css">
-    table { width: 100%;  border-collapse: collapse; }
-    td { border: solid black 1px; }
-  </style>
-</head>
-
-<body>
-
-<!-- The attributes below (except math@display) should no longer have effect on
-     <mstyle>/<math> elements. See bug 838509 -->
-
-<table>
-  <tbody>
-    <tr>
-      <td>mo: form</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" form="postfix">
-          <mstyle form="postfix">
-            <mrow>
-              <!-- We assume that the infix/postfix forms of _ do -->
-              <!-- not have the same lspace/rspace values in the operator dictionary -->
-              <mtext>_</mtext>
-              <mo>_</mo>
-              <mtext>_</mtext>
-            </mrow>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mo: lspace, rspace</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" lspace="0" rspace="0">
-          <mstyle lspace="0" rspace="0">
-            <mrow>
-              <!-- We assume that the infix form of _ has -->
-              <!-- nonzero lspace/rspace values in the operator dictionary -->
-              <mtext>_</mtext>
-              <mo>_</mo>
-              <mtext>_</mtext>
-            </mrow>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mo: stretchy</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" stretchy="false">
-          <mstyle stretchy="false">
-            <mover>
-              <!-- We assume that the arrow has stretchy=true in the operator dictionary -->
-              <mtext>abcd</mtext>
-              <mo>&#x2192;</mo>
-            </mover>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mo: accent</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" accent="false">
-          <mstyle accent="false">
-            <mover>
-              <!-- We assume &#x23de; has accent=true in the operator dictionary -->
-              <mrow>
-                <mi>x</mi>
-                <mo>+</mo>
-                <mi>y</mi>
-                <mo>+</mo>
-                <mi>z</mi>
-              </mrow>
-              <mo>&#x23de;</mo>
-            </mover>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mo: maxsize</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" maxsize="100%">
-          <mstyle maxsize="100%">
-            <mo>(</mo>
-            <mspace height="3em"/>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mo: minsize</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" minsize="300%">
-          <mstyle minsize="300%">
-            <mo>(</mo>
-            <mspace height="1em"/>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mo: symmetric</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" symmetric="false">
-          <!-- We assume that ( has symmetric=true in the operator dictionary -->
-          <mstyle symmetric="false">
-            <mtext>_</mtext>
-            <mo minsize="200%">(</mo>
-            <mtext>_</mtext>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mo: movablelimits</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" movablelimits="false">
-          <!-- We assume that &#x2211; has movablelimits=true in the operator dictionary -->
-          <mstyle movablelimits="false">
-            <munderover>
-              <mo>&#x2211;</mo>
-              <mi>a</mi>
-              <mi>b</mi>
-            </munderover>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>mo: largeop</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" display="block" largeop="false">
-          <!-- We assume that &#x2211; has largeop=true in the operator dictionary -->
-          <mstyle largeop="false">
-            <mo>&#x2211;</mo>
-          </mstyle>
-        </math></td>
-    </tr>
-    <!-- 
-            fence: This attribute generally has no direct effect on the visual rendering.
-            separator: This attribute generally has no direct effect on the visual rendering.
-      -->
-  </tbody>
-</table>
-</body>
-</html>
diff --git a/layout/reftests/mathml/mstyle-4-ref.xhtml b/layout/reftests/mathml/mstyle-4-ref.xhtml
deleted file mode 100644
index e82876083e..0000000000
--- a/layout/reftests/mathml/mstyle-4-ref.xhtml
+++ /dev/null
@@ -1,75 +0,0 @@
-<?xml version="1.0" encoding="us-ascii"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-  <meta http-equiv="content-type"
-  content="application/xhtml+xml; charset=us-ascii" />
-  <title>Test mstyle</title>
-  <style type="text/css">
-    table { width: 100%;  border-collapse: collapse; }
-    td { border: solid black 1px; }
-  </style>
-</head>
-
-<body>
-
-<table>
-  <tbody>
-    <tr>
-      <td>mover: accent</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <mstyle>
-            <mover>
-              <!-- We assume &#x23de; is accent in the operator dictionary -->
-              <mrow>
-                <mi>x</mi>
-                <mo>+</mo>
-                <mi>y</mi>
-                <mo>+</mo>
-                <mi>z</mi>
-              </mrow>
-              <mo>&#x23de;</mo>
-            </mover>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>munder: accentunder</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <mstyle>
-            <munder>
-              <!-- We assume &#x23df; is accent in the operator dictionary -->
-              <mrow>
-                <mi>x</mi>
-                <mo>+</mo>
-                <mi>y</mi>
-                <mo>+</mo>
-                <mi>z</mi>
-              </mrow>
-              <mo>&#x23df;</mo>
-            </munder>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>munderover: accent, accentunder</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML">
-          <mstyle>
-            <munderover>
-              <!-- We assume &#x23de; and &#x23df; are accents in the operator dictionary -->
-              <mrow>
-                <mi>x</mi>
-                <mo>+</mo>
-                <mi>y</mi>
-                <mo>+</mo>
-                <mi>z</mi>
-              </mrow>
-              <mo>&#x23df;</mo>
-              <mo>&#x23de;</mo>
-            </munderover>
-          </mstyle>
-        </math></td>
-    </tr>
-  </tbody>
-</table>
-</body>
-</html>
diff --git a/layout/reftests/mathml/mstyle-4.xhtml b/layout/reftests/mathml/mstyle-4.xhtml
deleted file mode 100644
index e934977557..0000000000
--- a/layout/reftests/mathml/mstyle-4.xhtml
+++ /dev/null
@@ -1,78 +0,0 @@
-<?xml version="1.0" encoding="us-ascii"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-  <meta http-equiv="content-type"
-  content="application/xhtml+xml; charset=us-ascii" />
-  <title>Test mstyle</title>
-  <style type="text/css">
-    table { width: 100%;  border-collapse: collapse; }
-    td { border: solid black 1px; }
-  </style>
-</head>
-
-<body>
-
-<!-- The attributes below should no longer have effect on <mstyle>/<math>
-     elements. See bug 838509 -->
-
-<table>
-  <tbody>
-    <tr>
-      <td>mover: accent</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" accent="false">
-          <mstyle accent="false">
-            <mover>
-              <!-- We assume &#x23de; is accent in the operator dictionary -->
-              <mrow>
-                <mi>x</mi>
-                <mo>+</mo>
-                <mi>y</mi>
-                <mo>+</mo>
-                <mi>z</mi>
-              </mrow>
-              <mo>&#x23de;</mo>
-            </mover>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>munder: accentunder</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" accentunder="false">
-          <mstyle accentunder="false">
-            <munder>
-              <!-- We assume &#x23df; is accent in the operator dictionary -->
-              <mrow>
-                <mi>x</mi>
-                <mo>+</mo>
-                <mi>y</mi>
-                <mo>+</mo>
-                <mi>z</mi>
-              </mrow>
-              <mo>&#x23df;</mo>
-            </munder>
-          </mstyle>
-        </math></td>
-    </tr>
-    <tr>
-      <td>munderover: accent, accentunder</td>
-      <td><math xmlns="http://www.w3.org/1998/Math/MathML" accent="false" accentunder="false">
-          <mstyle accent="false" accentunder="false">
-            <munderover>
-              <!-- We assume &#x23de; and &#x23df; are accents in the operator dictionary -->
-              <mrow>
-                <mi>x</mi>
-                <mo>+</mo>
-                <mi>y</mi>
-                <mo>+</mo>
-                <mi>z</mi>
-              </mrow>
-              <mo>&#x23df;</mo>
-              <mo>&#x23de;</mo>
-            </munderover>
-          </mstyle>
-        </math></td>
-    </tr>
-  </tbody>
-</table>
-</body>
-</html>
diff --git a/layout/reftests/mathml/multiscripts-1-ref.html b/layout/reftests/mathml/multiscripts-1-ref.html
deleted file mode 100644
index 2fcc142503..0000000000
--- a/layout/reftests/mathml/multiscripts-1-ref.html
+++ /dev/null
@@ -1,71 +0,0 @@
-<!DOCTYPE html>
-<html><head>
-<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"><title>Comparison of script elements</title></head>
-  <body>
-    msubsup:
-    <math>
-      <mmultiscripts style="background: red;">
-	<mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-	<mtext style="background-color: rgba(0, 255, 0, 0.4);">bbb</mtext>
-	<mtext style="background-color: rgba(0, 255, 0, 0.4);">ccc</mtext>
-      </mmultiscripts>
-    </math>
-
-    <br><br>
-
-    msubsup:
-    <math>
-      <mmultiscripts style="background: red;">
-	<mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-	<mtext style="background-color: rgba(0, 255, 0, 0.4);">bbb</mtext>
-        <none/>
-      </mmultiscripts>
-    </math>
-
-    <br><br>
-
-    msup / msubsup:
-    <math>
-      <mmultiscripts style="background: red;">
-	<mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-        <none/>
-	<mtext style="background-color: rgba(0, 255, 0, 0.4);">bbb</mtext>
-      </mmultiscripts>
-    </math>
-
-    <math>
-      <mmultiscripts style="background: red;">
-	<mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-        <none/>
-	<mtext style="background-color: rgba(0, 255, 0, 0.4);">bbb</mtext>
-      </mmultiscripts>
-    </math>
-
-    <br><br>
-
-
-    mrow / msub:
-    <math>
-      <mrow style="background: red;">
-        <mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-      </mrow>
-    </math>
-
-    <math>
-      <mrow style="background: red;">
-        <mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-      </mrow>
-    </math>
-
-    <br><br>
-
-    msupsub:
-    <math>
-      <mmultiscripts style="background: red;">
-        <mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-        <none />
-        <none />
-      </mmultiscripts>
-    </math>
-
-</body></html>
diff --git a/layout/reftests/mathml/multiscripts-1.html b/layout/reftests/mathml/multiscripts-1.html
deleted file mode 100644
index fa45ff3699..0000000000
--- a/layout/reftests/mathml/multiscripts-1.html
+++ /dev/null
@@ -1,71 +0,0 @@
-<!DOCTYPE html>
-<html><head>
-<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"><title>Comparison of script elements</title></head>
-  <body>
-    msubsup:
-    <math>
-      <msubsup style="background: red;">
-        <mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-        <mtext style="background-color: rgba(0, 255, 0, 0.4);">bbb</mtext>
-        <mtext style="background-color: rgba(0, 255, 0, 0.4);">ccc</mtext>
-      </msubsup>
-    </math>
-
-    <br><br>
-
-    <!-- Different rules apply to msub, so it won't provide equivalent output -->
-    msubsup:
-    <math>
-      <msubsup style="background: red;">
-        <mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-        <mtext style="background-color: rgba(0, 255, 0, 0.4);">bbb</mtext>
-        <mrow></mrow>
-      </msubsup>
-    </math>
-
-    <br><br>
-
-    msup / msubsup:
-    <math>
-      <msup style="background: red;">
-        <mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-        <mtext style="background-color: rgba(0, 255, 0, 0.4);">bbb</mtext>
-      </msup>
-    </math>
-
-    <math>
-      <msubsup style="background: red;">
-        <mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-        <mrow></mrow>
-        <mtext style="background-color: rgba(0, 255, 0, 0.4);">bbb</mtext>
-      </msubsup>
-    </math>
-
-    <br><br>
-
-    mrow / msub:
-    <math>
-      <mrow style="background: red;">
-        <mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-      </mrow>
-    </math>
-
-    <math>
-      <msub style="background: red;">
-        <mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-        <mrow></mrow>
-      </msub>
-    </math>
-
-    <br><br>
-
-    msupsub:
-    <math>
-      <msubsup style="background: red;">
-        <mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-        <mrow></mrow>
-        <mrow></mrow>
-      </msubsup>
-    </math>
-
-</body></html>
diff --git a/layout/reftests/mathml/munder-mover-align-accent-false-ref.html b/layout/reftests/mathml/munder-mover-align-accent-false-ref.html
deleted file mode 100644
index ff98924f80..0000000000
--- a/layout/reftests/mathml/munder-mover-align-accent-false-ref.html
+++ /dev/null
@@ -1,114 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title></title></head>
-  <body>
-    <h2> Test with accent="false" </h2>
-    <table border="1">
-      <tr>
-	<th colspan="2">mover</th>
-	<th colspan="2">munder</th>
-      </tr>
-      <tr>
-	<td align="center"><mrow>
-	    <mi>Over</mi>
-	    <mo>&lt;</mo>
-	    <mi>Base</mi>
-	  </mrow>
-	</td>
-	<td align="center">
-	  <mrow>
-	    <mi>Over</mi>
-	    <mo>&gt;</mo>
-	    <mi>Base</mi>
-	  </mrow>
-	</td>
-	<td align="center">
-	  <mrow>
-	    <mi>Over</mi>
-	    <mo>&lt;</mo>
-	    <mi>Base</mi>
-	  </mrow>
-	</td>
-	<td align="center">
-	  <mrow>
-	    <mi>Over</mi>
-	    <mo>&gt;</mo>
-	    <mi>Base</mi>
-	  </mrow></td>
-      </tr>
-      <tr>
-	<td align="center">
-	  <math>
-	    <mover>
-	      <mspace height="15px" width="75px" mathbackground="blue"/>
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="red"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	    </mover>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <mover>
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="blue"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	    </mover>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <munder>
-	      <mspace height="15px" width="75px" mathbackground="blue"/>
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="red"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	    </munder>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <munder>
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="blue"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	    </munder>
-	  </math>
-	  </td>
-      </tr>
-    </table>
-    <table>
-      <tr>
-	<th>
-	  <h5>Under & Over</h5>
-	  
-	  <math>
-	    <mrow>
-	      <mspace height="15px" width="25px" mathbackground="red"/>
-	    </mrow>
-	  </math>
-	</th>
-	<th>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</th>
-	<th>
-	  <h5>Base</h5>
-	  
-	  <math>
-	    <mrow>
-	      <mspace height="15px" width="25px" mathbackground="blue"/>
-	    </mrow>
-	  </math>
-	</th>
-      </tr>
-    </table>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/munder-mover-align-accent-false.html b/layout/reftests/mathml/munder-mover-align-accent-false.html
deleted file mode 100644
index 14696c286d..0000000000
--- a/layout/reftests/mathml/munder-mover-align-accent-false.html
+++ /dev/null
@@ -1,98 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title></title></head>
-  <body>
-    <h2> Test with accent="false" </h2>
-    <table border="1">
-      <tr>
-	<th colspan="2">mover</th>
-	<th colspan="2">munder</th>
-      </tr>
-      <tr>
-	<td align="center"><mrow>
-	    <mi>Over</mi>
-	    <mo>&lt;</mo>
-	    <mi>Base</mi>
-	  </mrow>
-	</td>
-	<td align="center">
-	  <mrow>
-	    <mi>Over</mi>
-	    <mo>&gt;</mo>
-	    <mi>Base</mi>
-	  </mrow>
-	</td>
-	<td align="center">
-	  <mrow>
-	    <mi>Over</mi>
-	    <mo>&lt;</mo>
-	    <mi>Base</mi>
-	  </mrow>
-	</td>
-	<td align="center">
-	  <mrow>
-	    <mi>Over</mi>
-	    <mo>&gt;</mo>
-	    <mi>Base</mi>
-	  </mrow></td>
-      </tr>
-      <tr>
-	<td align="center">
-	  <math>
-	    <mover>
-	      <mspace height="15px" width="75px" mathbackground="blue"/>
-	      <mspace height="15px" width="25px" mathbackground="red"/>
-	    </mover>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <mover>
-	      <mspace height="15px" width="25px" mathbackground="blue"/>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	    </mover>
-	  </math>
-	  </td>
-	<td align="center">
-	  <math>
-	    <munder>
-	      <mspace height="15px" width="75px" mathbackground="blue"/>
-	      <mspace height="15px" width="25px" mathbackground="red"/>
-	    </munder>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <munder>
-	      <mspace height="15px" width="25px" mathbackground="blue"/>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	    </munder>
-	  </math>
-	  </td>
-      </tr>
-    </table>
-    <table>
-      <tr>
-      <th>
-	<h5>Under & Over</h5>
-      
-	<math>
-	  <mrow>
-	    <mspace height="15px" width="25px" mathbackground="red"/>
-	  </mrow>
-	</math>
-      </th>
-      <th>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</th>
-      <th>
-	<h5>Base</h5>
-	
-	<math>
-	  <mrow>
-	    <mspace height="15px" width="25px" mathbackground="blue"/>
-	  </mrow>
-	</math>
-      </th>
-      </tr>
-    </table>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/munder-mover-align-accent-true-ref.html b/layout/reftests/mathml/munder-mover-align-accent-true-ref.html
deleted file mode 100644
index 9ed8c4e518..0000000000
--- a/layout/reftests/mathml/munder-mover-align-accent-true-ref.html
+++ /dev/null
@@ -1,114 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title></title></head>
-  <body>
-    <h2> Test with accent="true" </h2>
-    <table border="1">
-      <tr>
-	<th colspan="2">mover</th>
-	<th colspan="2">munder</th>
-      </tr>
-      <tr>
-	<td align="center"><mrow>
-	    <mi>Over</mi>
-	    <mo>&lt;</mo>
-	    <mi>Base</mi>
-	  </mrow>
-	</td>
-	<td align="center">
-	  <mrow>
-	    <mi>Over</mi>
-	    <mo>&gt;</mo>
-	    <mi>Base</mi>
-	  </mrow>
-	</td>
-	<td align="center">
-	  <mrow>
-	    <mi>Over</mi>
-	    <mo>&lt;</mo>
-	    <mi>Base</mi>
-	  </mrow>
-	</td>
-	<td align="center">
-	  <mrow>
-	    <mi>Over</mi>
-	    <mo>&gt;</mo>
-	    <mi>Base</mi>
-	  </mrow></td>
-      </tr>
-      <tr>
-	<td align="center">
-	  <math>
-	    <mover accent="true">
-	      <mspace height="15px" width="75px" mathbackground="blue"/>
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="red"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	    </mover>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <mover accent="true">
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="blue"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	    </mover>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <munder accentunder="true">
-	      <mspace height="15px" width="75px" mathbackground="blue"/>
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="red"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	    </munder>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <munder accentunder="true">
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="blue"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	    </munder>
-	  </math>
-	  </td>
-      </tr>
-    </table>
-    <table>
-      <tr>
-	<th>
-	  <h5>Under & Over</h5>
-	  
-	  <math>
-	    <mrow>
-	      <mspace height="15px" width="25px" mathbackground="red"/>
-	    </mrow>
-	  </math>
-	</th>
-	<th>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</th>
-	<th>
-	  <h5>Base</h5>
-	  
-	  <math>
-	    <mrow>
-	      <mspace height="15px" width="25px" mathbackground="blue"/>
-	    </mrow>
-	  </math>
-	</th>
-      </tr>
-    </table>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/munder-mover-align-accent-true.html b/layout/reftests/mathml/munder-mover-align-accent-true.html
deleted file mode 100644
index e98e0ef677..0000000000
--- a/layout/reftests/mathml/munder-mover-align-accent-true.html
+++ /dev/null
@@ -1,98 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title></title></head>
-  <body>
-    <h2> Test with accent="true" </h2>
-    <table border="1">
-      <tr>
-	<th colspan="2">mover</th>
-	<th colspan="2">munder</th>
-      </tr>
-      <tr>
-	<td align="center"><mrow>
-	    <mi>Over</mi>
-	    <mo>&lt;</mo>
-	    <mi>Base</mi>
-	  </mrow>
-	</td>
-	<td align="center">
-	  <mrow>
-	    <mi>Over</mi>
-	    <mo>&gt;</mo>
-	    <mi>Base</mi>
-	  </mrow>
-	</td>
-	<td align="center">
-	  <mrow>
-	    <mi>Over</mi>
-	    <mo>&lt;</mo>
-	    <mi>Base</mi>
-	  </mrow>
-	</td>
-	<td align="center">
-	  <mrow>
-	    <mi>Over</mi>
-	    <mo>&gt;</mo>
-	    <mi>Base</mi>
-	  </mrow></td>
-      </tr>
-      <tr>
-	<td align="center">
-	  <math>
-	    <mover accent="true">
-	      <mspace height="15px" width="75px" mathbackground="blue"/>
-	      <mspace height="15px" width="25px" mathbackground="red"/>
-	    </mover>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <mover accent="true">
-	      <mspace height="15px" width="25px" mathbackground="blue"/>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	    </mover>
-	  </math>
-	  </td>
-	<td align="center">
-	  <math>
-	    <munder accentunder="true">
-	      <mspace height="15px" width="75px" mathbackground="blue"/>
-	      <mspace height="15px" width="25px" mathbackground="red"/>
-	    </munder>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <munder accentunder="true">
-	      <mspace height="15px" width="25px" mathbackground="blue"/>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	    </munder>
-	  </math>
-	  </td>
-      </tr>
-    </table>
-    <table>
-      <tr>
-      <th>
-	<h5>Under & Over</h5>
-      
-	<math>
-	  <mrow>
-	    <mspace height="15px" width="25px" mathbackground="red"/>
-	  </mrow>
-	</math>
-      </th>
-      <th>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</th>
-      <th>
-	<h5>Base</h5>
-	
-	<math>
-	  <mrow>
-	    <mspace height="15px" width="25px" mathbackground="blue"/>
-	  </mrow>
-	</math>
-      </th>
-      </tr>
-    </table>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/munderover-align-accent-false-ref.html b/layout/reftests/mathml/munderover-align-accent-false-ref.html
deleted file mode 100644
index 7948407abf..0000000000
--- a/layout/reftests/mathml/munderover-align-accent-false-ref.html
+++ /dev/null
@@ -1,132 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title></title></head>
-  <body>
-    <h2> Test with accent="false" </h2>
-    <table border="1">
-      <tr>
-	<th colspan="6">munderover</th>
-      </tr>
-      <tr>
-	<td align="center"><math><mrow>
-	    <mi>Over</mi>
-	    <mo>&lt;</mo>
-	    <mi>Base</mi>
-	    <mo>&lt;</mo>
-	    <mi>Under<mi>
-	  </mrow></math>
-	</td>
-	<td align="center">
-	  <math><mrow>
-	    <mi>Over</mi>
-	    <mo>&gt;</mo>
-	    <mi>Base</mi>
-	    <mo>&gt;</mo>
-	    <mi>Under</mi>
-	  </mrow></math>
-	</td>
-	<td align="center">
-	  <math><mrow>
-	    <mi>Over = Under</mi>
-	    <mo>&lt;</mo>
-	    <mi>Base</mi>
-	  </mrow></math>
-	</td>
-	<td align="center"><math><mrow>
-	    <mi>Over = Under</mi>
-	    <mo>&gt;</mo>
-	    <mi>Base</mi>
-	</mrow></math></td>
-      </tr>
-      <tr>
-	<td align="center">
-	  <math>
-	    <munderover accent="false" accentunder="false">
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="50px" mathbackground="blue"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="red"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	    </munderover>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <munderover accent="false" accentunder="false">
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="50px" mathbackground="blue"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="red"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	    </munderover>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <munderover accent="false" accentunder="false">
-	      <mspace height="15px" width="75px" mathbackground="blue"/>
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="red"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="red"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	    </munderover>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <munderover accent="false" accentunder="false">
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="blue"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	    </munderover>
-	  </math>
-	  </td>
-      </tr>
-    </table>
-    <table>
-      <tr>
-	<th>
-	  <h5>Under & Over</h5>
-	  
-	  <math>
-	    <mrow>
-	      <mspace height="15px" width="25px" mathbackground="red"/>
-	    </mrow>
-	  </math>
-	</th>
-	<th>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</th>
-	<th>
-	  <h5>Base</h5>
-	  
-	  <math>
-	    <mrow>
-	      <mspace height="15px" width="25px" mathbackground="blue"/>
-	    </mrow>
-	  </math>
-	</th>
-      </tr>
-    </table>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/munderover-align-accent-false.html b/layout/reftests/mathml/munderover-align-accent-false.html
deleted file mode 100644
index d2ab965d96..0000000000
--- a/layout/reftests/mathml/munderover-align-accent-false.html
+++ /dev/null
@@ -1,104 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title></title></head>
-  <body>
-    <h2> Test with accent="false" </h2>
-    <table border="1">
-      <tr>
-	<th colspan="4">munderover</th>
-      </tr>
-      <tr>
-	<td align="center"><math><mrow>
-	    <mi>Over</mi>
-	    <mo>&lt;</mo>
-	    <mi>Base</mi>
-	    <mo>&lt;</mo>
-	    <mi>Under<mi>
-	  </mrow></math>
-	</td>
-	<td align="center">
-	  <math><mrow>
-	    <mi>Over</mi>
-	    <mo>&gt;</mo>
-	    <mi>Base</mi>
-	    <mo>&gt;</mo>
-	    <mi>Under</mi>
-	  </mrow></math>
-	</td>
-	<td align="center">
-	  <math><mrow>
-	    <mi>Over = Under</mi>
-	    <mo>&lt;</mo>
-	    <mi>Base</mi>
-	  </mrow></math>
-	</td>
-	<td align="center"><math><mrow>
-	    <mi>Over = Under</mi>
-	    <mo>&gt;</mo>
-	    <mi>Base</mi>
-	</mrow></math></td>
-      </tr>
-      <tr>
-	<td align="center">
-	  <math>
-	    <munderover>
-	      <mspace height="15px" width="50px" mathbackground="blue"/>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	      <mspace height="15px" width="25px" mathbackground="red"/>
-	    </munderover>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <munderover>
-	      <mspace height="15px" width="50px" mathbackground="blue"/>
-	      <mspace height="15px" width="25px" mathbackground="red"/>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	    </munderover>
-	  </math>
-	  </td>
-	<td align="center">
-	  <math>
-	    <munderover>
-	      <mspace height="15px" width="75px" mathbackground="blue"/>
-	      <mspace height="15px" width="25px" mathbackground="red"/>
-	      <mspace height="15px" width="25px" mathbackground="red"/>
-	    </munderover>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <munderover>
-	      <mspace height="15px" width="25px" mathbackground="blue"/>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	    </munderover>
-	  </math>
-	</td>
-      </tr>
-    </table>
-    <table>
-      <tr>
-      <th>
-	<h5>Under & Over</h5>
-      
-	<math>
-	  <mrow>
-	    <mspace height="15px" width="25px" mathbackground="red"/>
-	  </mrow>
-	</math>
-      </th>
-      <th>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</th>
-      <th>
-	<h5>Base</h5>
-	
-	<math>
-	  <mrow>
-	    <mspace height="15px" width="25px" mathbackground="blue"/>
-	  </mrow>
-	</math>
-      </th>
-      </tr>
-    </table>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/munderover-align-accent-true-ref.html b/layout/reftests/mathml/munderover-align-accent-true-ref.html
deleted file mode 100644
index d4c88c06e1..0000000000
--- a/layout/reftests/mathml/munderover-align-accent-true-ref.html
+++ /dev/null
@@ -1,132 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title></title></head>
-  <body>
-    <h2> Test with accent="true" </h2>
-    <table border="1">
-      <tr>
-	<th colspan="6">munderover</th>
-      </tr>
-      <tr>
-	<td align="center"><math><mrow>
-	    <mi>Over</mi>
-	    <mo>&lt;</mo>
-	    <mi>Base</mi>
-	    <mo>&lt;</mo>
-	    <mi>Under<mi>
-	  </mrow></math>
-	</td>
-	<td align="center">
-	  <math><mrow>
-	    <mi>Over</mi>
-	    <mo>&gt;</mo>
-	    <mi>Base</mi>
-	    <mo>&gt;</mo>
-	    <mi>Under</mi>
-	  </mrow></math>
-	</td>
-	<td align="center">
-	  <math><mrow>
-	    <mi>Over = Under</mi>
-	    <mo>&lt;</mo>
-	    <mi>Base</mi>
-	  </mrow></math>
-	</td>
-	<td align="center"><math><mrow>
-	    <mi>Over = Under</mi>
-	    <mo>&gt;</mo>
-	    <mi>Base</mi>
-	</mrow></math></td>
-      </tr>
-      <tr>
-	<td align="center">
-	  <math>
-	    <munderover accent="true" accentunder="true">
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="50px" mathbackground="blue"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="red"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	    </munderover>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <munderover accent="true" accentunder="true">
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="50px" mathbackground="blue"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="red"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	    </munderover>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <munderover accent="true" accentunder="true">
-	      <mspace height="15px" width="75px" mathbackground="blue"/>
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="red"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="red"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	    </munderover>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <munderover accent="true" accentunder="true">
-	      <mrow>
-		<mspace height="15px" width="25px"/>
-		<mspace height="15px" width="25px" mathbackground="blue"/>
-		<mspace height="15px" width="25px"/>
-	      </mrow>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	    </munderover>
-	  </math>
-	  </td>
-      </tr>
-    </table>
-    <table>
-      <tr>
-	<th>
-	  <h5>Under & Over</h5>
-	  
-	  <math>
-	    <mrow>
-	      <mspace height="15px" width="25px" mathbackground="red"/>
-	    </mrow>
-	  </math>
-	</th>
-	<th>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</th>
-	<th>
-	  <h5>Base</h5>
-	  
-	  <math>
-	    <mrow>
-	      <mspace height="15px" width="25px" mathbackground="blue"/>
-	    </mrow>
-	  </math>
-	</th>
-      </tr>
-    </table>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/munderover-align-accent-true.html b/layout/reftests/mathml/munderover-align-accent-true.html
deleted file mode 100644
index 3067ae5ea8..0000000000
--- a/layout/reftests/mathml/munderover-align-accent-true.html
+++ /dev/null
@@ -1,104 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title></title></head>
-  <body>
-    <h2> Test with accent="true" </h2>
-    <table border="1">
-      <tr>
-	<th colspan="4">munderover</th>
-      </tr>
-      <tr>
-	<td align="center"><math><mrow>
-	    <mi>Over</mi>
-	    <mo>&lt;</mo>
-	    <mi>Base</mi>
-	    <mo>&lt;</mo>
-	    <mi>Under<mi>
-	  </mrow></math>
-	</td>
-	<td align="center">
-	  <math><mrow>
-	    <mi>Over</mi>
-	    <mo>&gt;</mo>
-	    <mi>Base</mi>
-	    <mo>&gt;</mo>
-	    <mi>Under</mi>
-	  </mrow></math>
-	</td>
-	<td align="center">
-	  <math><mrow>
-	    <mi>Over = Under</mi>
-	    <mo>&lt;</mo>
-	    <mi>Base</mi>
-	  </mrow></math>
-	</td>
-	<td align="center"><math><mrow>
-	    <mi>Over = Under</mi>
-	    <mo>&gt;</mo>
-	    <mi>Base</mi>
-	</mrow></math></td>
-      </tr>
-      <tr>
-	<td align="center">
-	  <math>
-	    <munderover accent="true" accentunder="true">
-	      <mspace height="15px" width="50px" mathbackground="blue"/>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	      <mspace height="15px" width="25px" mathbackground="red"/>
-	    </munderover>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <munderover accent="true" accentunder="true">
-	      <mspace height="15px" width="50px" mathbackground="blue"/>
-	      <mspace height="15px" width="25px" mathbackground="red"/>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	    </munderover>
-	  </math>
-	  </td>
-	<td align="center">
-	  <math>
-	    <munderover accent="true" accentunder="true">
-	      <mspace height="15px" width="75px" mathbackground="blue"/>
-	      <mspace height="15px" width="25px" mathbackground="red"/>
-	      <mspace height="15px" width="25px" mathbackground="red"/>
-	    </munderover>
-	  </math>
-	</td>
-	<td align="center">
-	  <math>
-	    <munderover accent="true" accentunder="true">
-	      <mspace height="15px" width="25px" mathbackground="blue"/>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	      <mspace height="15px" width="75px" mathbackground="red"/>
-	    </munderover>
-	  </math>
-	</td>
-      </tr>
-    </table>
-    <table>
-      <tr>
-      <th>
-	<h5>Under & Over</h5>
-      
-	<math>
-	  <mrow>
-	    <mspace height="15px" width="25px" mathbackground="red"/>
-	  </mrow>
-	</math>
-      </th>
-      <th>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</th>
-      <th>
-	<h5>Base</h5>
-	
-	<math>
-	  <mrow>
-	    <mspace height="15px" width="25px" mathbackground="blue"/>
-	  </mrow>
-	</math>
-      </th>
-      </tr>
-    </table>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/munderover-empty-scripts-ref.html b/layout/reftests/mathml/munderover-empty-scripts-ref.html
deleted file mode 100644
index 27d858309d..0000000000
--- a/layout/reftests/mathml/munderover-empty-scripts-ref.html
+++ /dev/null
@@ -1,35 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>Test munderover with empty scripts</title>
-  </head>
-  <body>
-
-    <p>munder / munderover with empty overscript:
-    <math>
-      <munderover style="background: red;">
-        <mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-        <mtext style="background-color: rgba(0, 255, 0, 0.4);">bbb</mtext>
-        <mspace></mspace>
-      </munderover>
-    </math></p>
-
-    <p>mover / munderover with empty underscript:
-    <math>
-      <munderover style="background: red;">
-        <mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-        <mspace></mspace>
-        <mtext style="background-color: rgba(0, 255, 0, 0.4);">bbb</mtext>
-      </munderover>
-    </math></p>
-
-    <p>mrow / munder with empty scripts:
-    <math>
-      <munderover style="background: red;">
-        <mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-        <mspace></mspace>
-        <mspace></mspace>
-      </munderover>
-    </math></p>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/munderover-empty-scripts.html b/layout/reftests/mathml/munderover-empty-scripts.html
deleted file mode 100644
index 5704c5c74d..0000000000
--- a/layout/reftests/mathml/munderover-empty-scripts.html
+++ /dev/null
@@ -1,32 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>Test munderover with empty scripts</title>
-  </head>
-  <body>
-
-    <p>munder / munderover with empty overscript:
-    <math>
-      <munder style="background: red;">
-        <mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-        <mtext style="background-color: rgba(0, 255, 0, 0.4);">bbb</mtext>
-      </munder>
-    </math></p>
-
-    <p>mover / munderover with empty underscript:
-    <math>
-      <mover style="background: red;">
-        <mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-        <mtext style="background-color: rgba(0, 255, 0, 0.4);">bbb</mtext>
-      </mover>
-    </math></p>
-
-    <p>mrow / munder with empty scripts:
-    <math>
-      <mrow style="background: red;">
-        <mtext style="background-color: rgba(0, 0, 255, 0.4);">AAA</mtext>
-      </mrow>
-    </math></p>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/overbar-width-1-ref.xhtml b/layout/reftests/mathml/overbar-width-1-ref.xhtml
deleted file mode 100644
index 64e89f403f..0000000000
--- a/layout/reftests/mathml/overbar-width-1-ref.xhtml
+++ /dev/null
@@ -1,26 +0,0 @@
-<html xmlns="http://www.w3.org/1999/xhtml">
-  <head>
-    <style type="text/css">
-      html { background-color: grey; }
-      div { display: inline-block;
-            font-size: 30px;
-            line-height: 60px; /* Ensure space for overbar */
-            border: 1px solid white;
-            padding: 2px; /* 10% error allowed in char selection */
-            background-color: black;
-            color: red; }
-    </style>
-  </head>
-<body>
-  <div>
-    <math xmlns="http://www.w3.org/1998/Math/MathML">
-      <mphantom>
-	<mover>
-	  <mi>ai</mi>
-	  <mo>&#xaf;</mo>
-	</mover>
-      </mphantom>
-    </math>
-  </div>
-</body>
-</html>
diff --git a/layout/reftests/mathml/overbar-width-1.xhtml b/layout/reftests/mathml/overbar-width-1.xhtml
deleted file mode 100644
index ab261d061d..0000000000
--- a/layout/reftests/mathml/overbar-width-1.xhtml
+++ /dev/null
@@ -1,25 +0,0 @@
-<html xmlns="http://www.w3.org/1999/xhtml">
-  <head>
-    <title>Check width of stretchy OverBar</title>
-    <style type="text/css">
-      html { background-color: grey; }
-      div { display: inline-block;
-            font-size: 30px;
-            line-height: 60px; /* Ensure space for overbar */
-            border: 1px solid white;
-            padding: 2px; /* 10% error allowed in char selection */
-            background-color: black;
-            color: black; }
-    </style>
-  </head>
-<body>
-  <div>
-    <math xmlns="http://www.w3.org/1998/Math/MathML">
-      <mover>
-	<mi>ai</mi>
-	<mo>&#xaf;</mo>
-      </mover>
-    </math>
-  </div>
-</body>
-</html>
diff --git a/layout/reftests/mathml/radicalbar-1.html b/layout/reftests/mathml/radicalbar-1.html
deleted file mode 100644
index 326164c0fa..0000000000
--- a/layout/reftests/mathml/radicalbar-1.html
+++ /dev/null
@@ -1,48 +0,0 @@
-<!DOCTYPE html>
-  <html>
-  <head>
-    <!-- Default to invisible text -->
-    <style type="text/css" media="screen, print">
-      .hidden {
-        color: white;
-      }
-      .visible {
-        color: black;
-      }
-    </style>
-  </head>
-  <body>
-    <!-- Nest successive radicals and test that the horizontal bar of one of them is drawn.
-         Because the comparison is for inequality with about:blank, at most one can be visible -->
-    <math>
-      <mrow>
-        <msqrt class="hidden">
-          <mspace width="1em" height="1em" />
-          <msqrt class="hidden">
-            <mspace width="1em" height="1em" />
-            <msqrt class="hidden">
-              <mspace width="1em" height="1em" />
-              <msqrt class="hidden">
-                <mspace width="1em" height="1em" />
-                <msqrt class="hidden">
-                  <mspace width="1em" height="1em" />
-                  <msqrt class="hidden">
-                    <mspace width="1em" height="1em" />
-                    <msqrt class="visible">
-                      <mspace width="20em" height="1em" />
-                    </msqrt>
-                  </msqrt>
-                </msqrt>
-              </msqrt>
-            </msqrt>
-          </msqrt>
-        </msqrt>
-      </mrow>
-    </math>
-
-    <!-- Block out all but the horizontal bar of the visible radical -->
-    <div style="position: absolute; top: 5px; left: 0px;
-                width: 20em; height: 10em; background: white;"></div>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/radicalbar-1a.html b/layout/reftests/mathml/radicalbar-1a.html
deleted file mode 100644
index bf2e5147ae..0000000000
--- a/layout/reftests/mathml/radicalbar-1a.html
+++ /dev/null
@@ -1,48 +0,0 @@
-<!DOCTYPE html>
-  <html reftest-zoom=".5">
-  <head>
-    <!-- Default to invisible text -->
-    <style type="text/css" media="screen, print">
-      .hidden {
-        color: white;
-      }
-      .visible {
-        color: black;
-      }
-    </style>
-  </head>
-  <body>
-    <!-- Nest successive radicals and test that the horizontal bar of one of them is drawn.
-         Because the comparison is for inequality with about:blank, at most one can be visible -->
-    <math>
-      <mrow>
-        <msqrt class="hidden">
-          <mspace width="1em" height="1em" />
-          <msqrt class="hidden">
-            <mspace width="1em" height="1em" />
-            <msqrt class="hidden">
-              <mspace width="1em" height="1em" />
-              <msqrt class="hidden">
-                <mspace width="1em" height="1em" />
-                <msqrt class="hidden">
-                  <mspace width="1em" height="1em" />
-                  <msqrt class="hidden">
-                    <mspace width="1em" height="1em" />
-                    <msqrt class="visible">
-                      <mspace width="20em" height="1em" />
-                    </msqrt>
-                  </msqrt>
-                </msqrt>
-              </msqrt>
-            </msqrt>
-          </msqrt>
-        </msqrt>
-      </mrow>
-    </math>
-
-    <!-- Block out all but the horizontal bar of the visible radical -->
-    <div style="position: absolute; top: 5px; left: 0px;
-                width: 20em; height: 10em; background: white;"></div>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/radicalbar-1b.html b/layout/reftests/mathml/radicalbar-1b.html
deleted file mode 100644
index a469943e79..0000000000
--- a/layout/reftests/mathml/radicalbar-1b.html
+++ /dev/null
@@ -1,48 +0,0 @@
-<!DOCTYPE html>
-  <html reftest-zoom=".4">
-  <head>
-    <!-- Default to invisible text -->
-    <style type="text/css" media="screen, print">
-      .hidden {
-        color: white;
-      }
-      .visible {
-        color: black;
-      }
-    </style>
-  </head>
-  <body>
-    <!-- Nest successive radicals and test that the horizontal bar of one of them is drawn.
-         Because the comparison is for inequality with about:blank, at most one can be visible -->
-    <math>
-      <mrow>
-        <msqrt class="hidden">
-          <mspace width="1em" height="1em" />
-          <msqrt class="hidden">
-            <mspace width="1em" height="1em" />
-            <msqrt class="hidden">
-              <mspace width="1em" height="1em" />
-              <msqrt class="hidden">
-                <mspace width="1em" height="1em" />
-                <msqrt class="hidden">
-                  <mspace width="1em" height="1em" />
-                  <msqrt class="hidden">
-                    <mspace width="1em" height="1em" />
-                    <msqrt class="visible">
-                      <mspace width="20em" height="1em" />
-                    </msqrt>
-                  </msqrt>
-                </msqrt>
-              </msqrt>
-            </msqrt>
-          </msqrt>
-        </msqrt>
-      </mrow>
-    </math>
-
-    <!-- Block out all but the horizontal bar of the visible radical -->
-    <div style="position: absolute; top: 5px; left: 0px;
-                width: 20em; height: 10em; background: white;"></div>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/radicalbar-1c.html b/layout/reftests/mathml/radicalbar-1c.html
deleted file mode 100644
index 0485fe4136..0000000000
--- a/layout/reftests/mathml/radicalbar-1c.html
+++ /dev/null
@@ -1,48 +0,0 @@
-<!DOCTYPE html>
-  <html reftest-zoom=".3">
-  <head>
-    <!-- Default to invisible text -->
-    <style type="text/css" media="screen, print">
-      .hidden {
-        color: white;
-      }
-      .visible {
-        color: black;
-      }
-    </style>
-  </head>
-  <body>
-    <!-- Nest successive radicals and test that the horizontal bar of one of them is drawn.
-         Because the comparison is for inequality with about:blank, at most one can be visible -->
-    <math>
-      <mrow>
-        <msqrt class="hidden">
-          <mspace width="1em" height="1em" />
-          <msqrt class="hidden">
-            <mspace width="1em" height="1em" />
-            <msqrt class="hidden">
-              <mspace width="1em" height="1em" />
-              <msqrt class="hidden">
-                <mspace width="1em" height="1em" />
-                <msqrt class="hidden">
-                  <mspace width="1em" height="1em" />
-                  <msqrt class="hidden">
-                    <mspace width="1em" height="1em" />
-                    <msqrt class="visible">
-                      <mspace width="20em" height="1em" />
-                    </msqrt>
-                  </msqrt>
-                </msqrt>
-              </msqrt>
-            </msqrt>
-          </msqrt>
-        </msqrt>
-      </mrow>
-    </math>
-
-    <!-- Block out all but the horizontal bar of the visible radical -->
-    <div style="position: absolute; top: 5px; left: 0px;
-                width: 20em; height: 10em; background: white;"></div>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/radicalbar-1d.html b/layout/reftests/mathml/radicalbar-1d.html
deleted file mode 100644
index f89db4ded3..0000000000
--- a/layout/reftests/mathml/radicalbar-1d.html
+++ /dev/null
@@ -1,48 +0,0 @@
-<!DOCTYPE html>
-  <html reftest-zoom=".2">
-  <head>
-    <!-- Default to invisible text -->
-    <style type="text/css" media="screen, print">
-      .hidden {
-        color: white;
-      }
-      .visible {
-        color: black;
-      }
-    </style>
-  </head>
-  <body>
-    <!-- Nest successive radicals and test that the horizontal bar of one of them is drawn.
-         Because the comparison is for inequality with about:blank, at most one can be visible -->
-    <math>
-      <mrow>
-        <msqrt class="hidden">
-          <mspace width="1em" height="1em" />
-          <msqrt class="hidden">
-            <mspace width="1em" height="1em" />
-            <msqrt class="hidden">
-              <mspace width="1em" height="1em" />
-              <msqrt class="hidden">
-                <mspace width="1em" height="1em" />
-                <msqrt class="hidden">
-                  <mspace width="1em" height="1em" />
-                  <msqrt class="hidden">
-                    <mspace width="1em" height="1em" />
-                    <msqrt class="visible">
-                      <mspace width="20em" height="1em" />
-                    </msqrt>
-                  </msqrt>
-                </msqrt>
-              </msqrt>
-            </msqrt>
-          </msqrt>
-        </msqrt>
-      </mrow>
-    </math>
-
-    <!-- Block out all but the horizontal bar of the visible radical -->
-    <div style="position: absolute; top: 5px; left: 0px;
-                width: 20em; height: 10em; background: white;"></div>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/radicalbar-2.html b/layout/reftests/mathml/radicalbar-2.html
deleted file mode 100644
index 1870493cb4..0000000000
--- a/layout/reftests/mathml/radicalbar-2.html
+++ /dev/null
@@ -1,47 +0,0 @@
-<!DOCTYPE html>
-  <html>
-  <head>
-    <!-- Default to invisible text -->
-    <style type="text/css" media="screen, print">
-      .hidden {
-        color: white;
-      }
-      .visible {
-        color: black;
-      }
-    </style>
-  </head>
-  <body>
-    <!-- Nest successive radicals and test that the horizontal bar of one of them is drawn.
-         Because the comparison is for inequality with about:blank, at most one can be visible -->
-    <math>
-      <mrow>
-        <msqrt class="hidden">
-          <mspace width="1em" height="1em" />
-          <msqrt class="hidden">
-            <mspace width="1em" height="1em" />
-            <msqrt class="hidden">
-              <mspace width="1em" height="1em" />
-              <msqrt class="hidden">
-                <mspace width="1em" height="1em" />
-                <msqrt class="hidden">
-                  <mspace width="1em" height="1em" />
-                  <msqrt class="visible">
-                    <mspace width="1em" height="1em" />
-                    <msqrt class="hidden">
-                      <mspace width="20em" height="1em" />
-                    </msqrt>
-                  </msqrt>
-                </msqrt>
-              </msqrt>
-            </msqrt>
-          </msqrt>
-        </msqrt>
-      </mrow>
-    </math>
-
-    <!-- Block out all but the horizontal bar of the visible radical -->
-    <div style="position: absolute; top: 5px; left: 0px;
-                width: 20em; height: 10em; background: white;"></div>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/radicalbar-2a.html b/layout/reftests/mathml/radicalbar-2a.html
deleted file mode 100644
index 9856fa868c..0000000000
--- a/layout/reftests/mathml/radicalbar-2a.html
+++ /dev/null
@@ -1,47 +0,0 @@
-<!DOCTYPE html>
-  <html reftest-zoom="0.5">
-  <head>
-    <!-- Default to invisible text -->
-    <style type="text/css" media="screen, print">
-      .hidden {
-        color: white;
-      }
-      .visible {
-        color: black;
-      }
-    </style>
-  </head>
-  <body>
-    <!-- Nest successive radicals and test that the horizontal bar of one of them is drawn.
-         Because the comparison is for inequality with about:blank, at most one can be visible -->
-    <math>
-      <mrow>
-        <msqrt class="hidden">
-          <mspace width="1em" height="1em" />
-          <msqrt class="hidden">
-            <mspace width="1em" height="1em" />
-            <msqrt class="hidden">
-              <mspace width="1em" height="1em" />
-              <msqrt class="hidden">
-                <mspace width="1em" height="1em" />
-                <msqrt class="hidden">
-                  <mspace width="1em" height="1em" />
-                  <msqrt class="visible">
-                    <mspace width="1em" height="1em" />
-                    <msqrt class="hidden">
-                      <mspace width="20em" height="1em" />
-                    </msqrt>
-                  </msqrt>
-                </msqrt>
-              </msqrt>
-            </msqrt>
-          </msqrt>
-        </msqrt>
-      </mrow>
-    </math>
-
-    <!-- Block out all but the horizontal bar of the visible radical -->
-    <div style="position: absolute; top: 5px; left: 0px;
-                width: 20em; height: 10em; background: white;"></div>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/radicalbar-2b.html b/layout/reftests/mathml/radicalbar-2b.html
deleted file mode 100644
index 7df074c40e..0000000000
--- a/layout/reftests/mathml/radicalbar-2b.html
+++ /dev/null
@@ -1,47 +0,0 @@
-<!DOCTYPE html>
-  <html reftest-zoom="0.4">
-  <head>
-    <!-- Default to invisible text -->
-    <style type="text/css" media="screen, print">
-      .hidden {
-        color: white;
-      }
-      .visible {
-        color: black;
-      }
-    </style>
-  </head>
-  <body>
-    <!-- Nest successive radicals and test that the horizontal bar of one of them is drawn.
-         Because the comparison is for inequality with about:blank, at most one can be visible -->
-    <math>
-      <mrow>
-        <msqrt class="hidden">
-          <mspace width="1em" height="1em" />
-          <msqrt class="hidden">
-            <mspace width="1em" height="1em" />
-            <msqrt class="hidden">
-              <mspace width="1em" height="1em" />
-              <msqrt class="hidden">
-                <mspace width="1em" height="1em" />
-                <msqrt class="hidden">
-                  <mspace width="1em" height="1em" />
-                  <msqrt class="visible">
-                    <mspace width="1em" height="1em" />
-                    <msqrt class="hidden">
-                      <mspace width="20em" height="1em" />
-                    </msqrt>
-                  </msqrt>
-                </msqrt>
-              </msqrt>
-            </msqrt>
-          </msqrt>
-        </msqrt>
-      </mrow>
-    </math>
-
-    <!-- Block out all but the horizontal bar of the visible radical -->
-    <div style="position: absolute; top: 5px; left: 0px;
-                width: 20em; height: 10em; background: white;"></div>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/radicalbar-2c.html b/layout/reftests/mathml/radicalbar-2c.html
deleted file mode 100644
index 138bad31ab..0000000000
--- a/layout/reftests/mathml/radicalbar-2c.html
+++ /dev/null
@@ -1,47 +0,0 @@
-<!DOCTYPE html>
-  <html reftest-zoom="0.3">
-  <head>
-    <!-- Default to invisible text -->
-    <style type="text/css" media="screen, print">
-      .hidden {
-        color: white;
-      }
-      .visible {
-        color: black;
-      }
-    </style>
-  </head>
-  <body>
-    <!-- Nest successive radicals and test that the horizontal bar of one of them is drawn.
-         Because the comparison is for inequality with about:blank, at most one can be visible -->
-    <math>
-      <mrow>
-        <msqrt class="hidden">
-          <mspace width="1em" height="1em" />
-          <msqrt class="hidden">
-            <mspace width="1em" height="1em" />
-            <msqrt class="hidden">
-              <mspace width="1em" height="1em" />
-              <msqrt class="hidden">
-                <mspace width="1em" height="1em" />
-                <msqrt class="hidden">
-                  <mspace width="1em" height="1em" />
-                  <msqrt class="visible">
-                    <mspace width="1em" height="1em" />
-                    <msqrt class="hidden">
-                      <mspace width="20em" height="1em" />
-                    </msqrt>
-                  </msqrt>
-                </msqrt>
-              </msqrt>
-            </msqrt>
-          </msqrt>
-        </msqrt>
-      </mrow>
-    </math>
-
-    <!-- Block out all but the horizontal bar of the visible radical -->
-    <div style="position: absolute; top: 5px; left: 0px;
-                width: 20em; height: 10em; background: white;"></div>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/radicalbar-2d.html b/layout/reftests/mathml/radicalbar-2d.html
deleted file mode 100644
index 7f12882422..0000000000
--- a/layout/reftests/mathml/radicalbar-2d.html
+++ /dev/null
@@ -1,47 +0,0 @@
-<!DOCTYPE html>
-  <html reftest-zoom="0.2">
-  <head>
-    <!-- Default to invisible text -->
-    <style type="text/css" media="screen, print">
-      .hidden {
-        color: white;
-      }
-      .visible {
-        color: black;
-      }
-    </style>
-  </head>
-  <body>
-    <!-- Nest successive radicals and test that the horizontal bar of one of them is drawn.
-         Because the comparison is for inequality with about:blank, at most one can be visible -->
-    <math>
-      <mrow>
-        <msqrt class="hidden">
-          <mspace width="1em" height="1em" />
-          <msqrt class="hidden">
-            <mspace width="1em" height="1em" />
-            <msqrt class="hidden">
-              <mspace width="1em" height="1em" />
-              <msqrt class="hidden">
-                <mspace width="1em" height="1em" />
-                <msqrt class="hidden">
-                  <mspace width="1em" height="1em" />
-                  <msqrt class="visible">
-                    <mspace width="1em" height="1em" />
-                    <msqrt class="hidden">
-                      <mspace width="20em" height="1em" />
-                    </msqrt>
-                  </msqrt>
-                </msqrt>
-              </msqrt>
-            </msqrt>
-          </msqrt>
-        </msqrt>
-      </mrow>
-    </math>
-
-    <!-- Block out all but the horizontal bar of the visible radical -->
-    <div style="position: absolute; top: 5px; left: 0px;
-                width: 20em; height: 10em; background: white;"></div>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/radicalbar-3.html b/layout/reftests/mathml/radicalbar-3.html
deleted file mode 100644
index 12fa3ae050..0000000000
--- a/layout/reftests/mathml/radicalbar-3.html
+++ /dev/null
@@ -1,47 +0,0 @@
-<!DOCTYPE html>
-  <html>
-  <head>
-    <!-- Default to invisible text -->
-    <style type="text/css" media="screen, print">
-      .hidden {
-        color: white;
-      }
-      .visible {
-        color: black;
-      }
-    </style>
-  </head>
-  <body>
-    <!-- Nest successive radicals and test that the horizontal bar of one of them is drawn.
-         Because the comparison is for inequality with about:blank, at most one can be visible -->
-    <math>
-      <mrow>
-        <msqrt class="hidden">
-          <mspace width="1em" height="1em" />
-          <msqrt class="hidden">
-            <mspace width="1em" height="1em" />
-            <msqrt class="hidden">
-              <mspace width="1em" height="1em" />
-              <msqrt class="hidden">
-                <mspace width="1em" height="1em" />
-                <msqrt class="visible">
-                  <mspace width="1em" height="1em" />
-                  <msqrt class="hidden">
-                    <mspace width="1em" height="1em" />
-                    <msqrt class="hidden">
-                      <mspace width="20em" height="1em" />
-                    </msqrt>
-                  </msqrt>
-                </msqrt>
-              </msqrt>
-            </msqrt>
-          </msqrt>
-        </msqrt>
-      </mrow>
-    </math>
-
-    <!-- Block out all but the horizontal bar of the visible radical -->
-    <div style="position: absolute; top: 5px; left: 0px;
-                width: 20em; height: 10em; background: white;"></div>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/radicalbar-3a.html b/layout/reftests/mathml/radicalbar-3a.html
deleted file mode 100644
index 24ebfec8e5..0000000000
--- a/layout/reftests/mathml/radicalbar-3a.html
+++ /dev/null
@@ -1,47 +0,0 @@
-<!DOCTYPE html>
-  <html reftest-zoom="0.5">
-  <head>
-    <!-- Default to invisible text -->
-    <style type="text/css" media="screen, print">
-      .hidden {
-        color: white;
-      }
-      .visible {
-        color: black;
-      }
-    </style>
-  </head>
-  <body>
-    <!-- Nest successive radicals and test that the horizontal bar of one of them is drawn.
-         Because the comparison is for inequality with about:blank, at most one can be visible -->
-    <math>
-      <mrow>
-        <msqrt class="hidden">
-          <mspace width="1em" height="1em" />
-          <msqrt class="hidden">
-            <mspace width="1em" height="1em" />
-            <msqrt class="hidden">
-              <mspace width="1em" height="1em" />
-              <msqrt class="hidden">
-                <mspace width="1em" height="1em" />
-                <msqrt class="visible">
-                  <mspace width="1em" height="1em" />
-                  <msqrt class="hidden">
-                    <mspace width="1em" height="1em" />
-                    <msqrt class="hidden">
-                      <mspace width="20em" height="1em" />
-                    </msqrt>
-                  </msqrt>
-                </msqrt>
-              </msqrt>
-            </msqrt>
-          </msqrt>
-        </msqrt>
-      </mrow>
-    </math>
-
-    <!-- Block out all but the horizontal bar of the visible radical -->
-    <div style="position: absolute; top: 5px; left: 0px;
-                width: 20em; height: 10em; background: white;"></div>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/radicalbar-3b.html b/layout/reftests/mathml/radicalbar-3b.html
deleted file mode 100644
index 1aeafb6cb7..0000000000
--- a/layout/reftests/mathml/radicalbar-3b.html
+++ /dev/null
@@ -1,47 +0,0 @@
-<!DOCTYPE html>
-  <html reftest-zoom="0.4">
-  <head>
-    <!-- Default to invisible text -->
-    <style type="text/css" media="screen, print">
-      .hidden {
-        color: white;
-      }
-      .visible {
-        color: black;
-      }
-    </style>
-  </head>
-  <body>
-    <!-- Nest successive radicals and test that the horizontal bar of one of them is drawn.
-         Because the comparison is for inequality with about:blank, at most one can be visible -->
-    <math>
-      <mrow>
-        <msqrt class="hidden">
-          <mspace width="1em" height="1em" />
-          <msqrt class="hidden">
-            <mspace width="1em" height="1em" />
-            <msqrt class="hidden">
-              <mspace width="1em" height="1em" />
-              <msqrt class="hidden">
-                <mspace width="1em" height="1em" />
-                <msqrt class="visible">
-                  <mspace width="1em" height="1em" />
-                  <msqrt class="hidden">
-                    <mspace width="1em" height="1em" />
-                    <msqrt class="hidden">
-                      <mspace width="20em" height="1em" />
-                    </msqrt>
-                  </msqrt>
-                </msqrt>
-              </msqrt>
-            </msqrt>
-          </msqrt>
-        </msqrt>
-      </mrow>
-    </math>
-
-    <!-- Block out all but the horizontal bar of the visible radical -->
-    <div style="position: absolute; top: 5px; left: 0px;
-                width: 20em; height: 10em; background: white;"></div>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/radicalbar-3c.html b/layout/reftests/mathml/radicalbar-3c.html
deleted file mode 100644
index e9e7e7ae55..0000000000
--- a/layout/reftests/mathml/radicalbar-3c.html
+++ /dev/null
@@ -1,47 +0,0 @@
-<!DOCTYPE html>
-  <html reftest-zoom="0.3">
-  <head>
-    <!-- Default to invisible text -->
-    <style type="text/css" media="screen, print">
-      .hidden {
-        color: white;
-      }
-      .visible {
-        color: black;
-      }
-    </style>
-  </head>
-  <body>
-    <!-- Nest successive radicals and test that the horizontal bar of one of them is drawn.
-         Because the comparison is for inequality with about:blank, at most one can be visible -->
-    <math>
-      <mrow>
-        <msqrt class="hidden">
-          <mspace width="1em" height="1em" />
-          <msqrt class="hidden">
-            <mspace width="1em" height="1em" />
-            <msqrt class="hidden">
-              <mspace width="1em" height="1em" />
-              <msqrt class="hidden">
-                <mspace width="1em" height="1em" />
-                <msqrt class="visible">
-                  <mspace width="1em" height="1em" />
-                  <msqrt class="hidden">
-                    <mspace width="1em" height="1em" />
-                    <msqrt class="hidden">
-                      <mspace width="20em" height="1em" />
-                    </msqrt>
-                  </msqrt>
-                </msqrt>
-              </msqrt>
-            </msqrt>
-          </msqrt>
-        </msqrt>
-      </mrow>
-    </math>
-
-    <!-- Block out all but the horizontal bar of the visible radical -->
-    <div style="position: absolute; top: 5px; left: 0px;
-                width: 20em; height: 10em; background: white;"></div>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/radicalbar-3d.html b/layout/reftests/mathml/radicalbar-3d.html
deleted file mode 100644
index 7d780af44c..0000000000
--- a/layout/reftests/mathml/radicalbar-3d.html
+++ /dev/null
@@ -1,47 +0,0 @@
-<!DOCTYPE html>
-  <html reftest-zoom="0.2">
-  <head>
-    <!-- Default to invisible text -->
-    <style type="text/css" media="screen, print">
-      .hidden {
-        color: white;
-      }
-      .visible {
-        color: black;
-      }
-    </style>
-  </head>
-  <body>
-    <!-- Nest successive radicals and test that the horizontal bar of one of them is drawn.
-         Because the comparison is for inequality with about:blank, at most one can be visible -->
-    <math>
-      <mrow>
-        <msqrt class="hidden">
-          <mspace width="1em" height="1em" />
-          <msqrt class="hidden">
-            <mspace width="1em" height="1em" />
-            <msqrt class="hidden">
-              <mspace width="1em" height="1em" />
-              <msqrt class="hidden">
-                <mspace width="1em" height="1em" />
-                <msqrt class="visible">
-                  <mspace width="1em" height="1em" />
-                  <msqrt class="hidden">
-                    <mspace width="1em" height="1em" />
-                    <msqrt class="hidden">
-                      <mspace width="20em" height="1em" />
-                    </msqrt>
-                  </msqrt>
-                </msqrt>
-              </msqrt>
-            </msqrt>
-          </msqrt>
-        </msqrt>
-      </mrow>
-    </math>
-
-    <!-- Block out all but the horizontal bar of the visible radical -->
-    <div style="position: absolute; top: 5px; left: 0px;
-                width: 20em; height: 10em; background: white;"></div>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/reftest.list b/layout/reftests/mathml/reftest.list
deleted file mode 100644
index b143a25174..0000000000
--- a/layout/reftests/mathml/reftest.list
+++ /dev/null
@@ -1,55 +0,0 @@
-random-if(smallScreen&&Android) fuzzy(0-255,0-200) fuzzy-if(geckoview,201-216,200-250) fuzzy-if(winWidget,114-255,245-361) fuzzy-if(OSX,79-153,240-250) == mirror-op-1.html mirror-op-1-ref.html
-!= mirror-op-2.html mirror-op-2-ref.html
-!= mirror-op-3.html mirror-op-3-ref.html
-!= mirror-op-4.html mirror-op-4-ref.html
-== overbar-width-1.xhtml overbar-width-1-ref.xhtml
-== stretchy-largeop-1.html stretchy-largeop-1-ref.html
-== stretchy-largeop-2.html stretchy-largeop-2-ref.html
-== stretchy-largeop-3.html stretchy-largeop-3-ref.html
-== underbar-width-1.xhtml underbar-width-1-ref.xhtml
-== semantics-1.xhtml semantics-1-ref.xhtml
-== semantics-2.html semantics-2-ref.html
-== semantics-3.html semantics-3-ref.html
-pref(mathml.stixgeneral_operator_stretching.disabled,false) == semantics-5.html semantics-5-ref.html # bug 1309429; bug 1648335
-fuzzy-if(OSX,0-16,0-8) == mstyle-3.xhtml mstyle-3-ref.xhtml
-fuzzy-if(OSX,0-1,0-4) == mstyle-4.xhtml mstyle-4-ref.xhtml
-== scale-stretchy-1.xhtml scale-stretchy-1-ref.xhtml
-!= scale-stretchy-2.xhtml scale-stretchy-2-ref.xhtml
-fails-if(OSX>=1010) == scale-stretchy-3.xhtml scale-stretchy-3-ref.xhtml
-!= scale-stretchy-4.xhtml scale-stretchy-4-ref.xhtml
-!= scale-stretchy-5.xhtml scale-stretchy-5-ref.xhtml
-!= stretchy-1.html stretchy-1-ref.html
-== mpadded-7.html mpadded-7-ref.html
-== mpadded-8.html mpadded-8-ref.html
-== mpadded-9.html mpadded-9-ref.html
-== scriptlevel-movablelimits-1.html scriptlevel-movablelimits-1-ref.html
-== munderover-align-accent-false.html munderover-align-accent-false-ref.html
-== munderover-align-accent-true.html munderover-align-accent-true-ref.html
-== munder-mover-align-accent-true.html munder-mover-align-accent-true-ref.html
-== munder-mover-align-accent-false.html munder-mover-align-accent-false-ref.html
-== munderover-empty-scripts.html munderover-empty-scripts-ref.html
-== mo-glyph-size.html mo-glyph-size-ref.html
-fuzzy(0-1,0-80) fuzzy-if(Android,0-255,0-105) fuzzy-if(gtkWidget,0-255,0-136) skip-if(winWidget) == multiscripts-1.html multiscripts-1-ref.html # Windows: bug 1314684; Android: bug 1392254; Linux: bug 1599638
-== mathml-mmultiscript-base.html mathml-mmultiscript-base-ref.html
-== mathml-mmultiscript-mprescript.html mathml-mmultiscript-mprescript-ref.html
-== mmultiscript-align.html mmultiscript-align-ref.html
-fails-if(winWidget) fuzzy-if(gtkWidget,255-255,776226-776226) == subscript-italic-correction.html subscript-italic-correction-ref.html # bug 961482 (Windows), bug 1599640 (Linux)
-
-# radicalbar*.html tests rely on reftest-zoom to verify the visibility of the
-# radical bar at different zoom levels. There does not seem to be any equivalent
-# way of testing that via WPT. See bug 1850661.
-!= radicalbar-1.html about:blank
-!= radicalbar-1a.html about:blank
-!= radicalbar-1b.html about:blank
-!= radicalbar-1c.html about:blank
-!= radicalbar-1d.html about:blank
-!= radicalbar-2.html about:blank
-!= radicalbar-2a.html about:blank
-!= radicalbar-2b.html about:blank
-!= radicalbar-2c.html about:blank
-!= radicalbar-2d.html about:blank
-!= radicalbar-3.html about:blank
-!= radicalbar-3a.html about:blank
-!= radicalbar-3b.html about:blank
-!= radicalbar-3c.html about:blank
-!= radicalbar-3d.html about:blank
diff --git a/layout/reftests/mathml/scale-stretchy-1-ref.xhtml b/layout/reftests/mathml/scale-stretchy-1-ref.xhtml
deleted file mode 100644
index e1182941c0..0000000000
--- a/layout/reftests/mathml/scale-stretchy-1-ref.xhtml
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-  <head>
-    <title>Maximal size for a vertical arrow stretched by scaling</title>
-  </head>
-
-  <body>
-
-    <table style="position: absolute;">
-      <tr>
-        <td><div style="height: 200px; width: 5px; background: black"/></td>
-        <td>
-          <math xmlns="http://www.w3.org/1998/Math/MathML">
-            <mrow>
-              <mspace height="50px" depth="50px" width="5px"
-                      style="background: yellow" />
-              <mspace height="55px" depth="55px" width="50px"
-                      style="background: red;"/>
-            </mrow>
-          </math>
-        </td>
-      </tr>
-    </table>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/scale-stretchy-1.xhtml b/layout/reftests/mathml/scale-stretchy-1.xhtml
deleted file mode 100644
index 76f0620dfd..0000000000
--- a/layout/reftests/mathml/scale-stretchy-1.xhtml
+++ /dev/null
@@ -1,41 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-  <head>
-    <title>Maximal size for a vertical arrow stretched by scaling</title>
-  </head>
-
-  <body>
-
-    <table style="position: absolute;">
-      <tr>
-        <td><div style="height: 200px; width: 5px; background: black"/></td>
-        <td>
-          <math xmlns="http://www.w3.org/1998/Math/MathML">
-            <mrow>
-              <mspace height="50px" depth="50px" width="5px"
-                      style="background: yellow" />
-              <mo style="color: blue;">&#x290B;</mo>
-            </mrow>
-          </math>
-        </td>
-      </tr>
-    </table>
-
-    <table style="position: absolute;">
-      <tr>
-        <td><div style="height: 200px; width: 5px; background: black"/></td>
-        <td>
-          <math xmlns="http://www.w3.org/1998/Math/MathML">
-            <mrow>
-              <mspace height="50px" depth="50px" width="5px"
-                      style="background: yellow" />
-              <mspace height="55px" depth="55px" width="50px"
-                      style="background: red;"/>
-            </mrow>
-          </math>
-        </td>
-      </tr>
-    </table>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/scale-stretchy-2-ref.xhtml b/layout/reftests/mathml/scale-stretchy-2-ref.xhtml
deleted file mode 100644
index e219fe0be6..0000000000
--- a/layout/reftests/mathml/scale-stretchy-2-ref.xhtml
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-  <head>
-    <title>Minimal size for a vertical arrow stretched by scaling</title>
-  </head>
-
-  <body>
-
-    <table style="position: absolute;">
-      <tr>
-        <td><div style="height: 200px; width: 5px; background: black"/></td>
-        <td>
-          <math xmlns="http://www.w3.org/1998/Math/MathML">
-            <mrow>
-              <mspace height="50px" depth="50px" width="5px"
-                      style="background: yellow" />
-              <mspace height="44px" depth="44px" width="50px"
-                      style="background: green;"/>
-            </mrow>
-          </math>
-        </td>
-      </tr>
-    </table>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/scale-stretchy-2.xhtml b/layout/reftests/mathml/scale-stretchy-2.xhtml
deleted file mode 100644
index e89910586d..0000000000
--- a/layout/reftests/mathml/scale-stretchy-2.xhtml
+++ /dev/null
@@ -1,41 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-  <head>
-    <title>Minimal size for a vertical arrow stretched by scaling</title>
-  </head>
-
-  <body>
-
-    <table style="position: absolute;">
-      <tr>
-        <td><div style="height: 200px; width: 5px; background: black"/></td>
-        <td>
-          <math xmlns="http://www.w3.org/1998/Math/MathML">
-            <mrow>
-              <mspace height="50px" depth="50px" width="5px"
-                      style="background: yellow" />
-              <mo style="color: blue;">&#x290B;</mo>
-            </mrow>
-          </math>
-        </td>
-      </tr>
-    </table>
-
-    <table style="position: absolute;">
-      <tr>
-        <td><div style="height: 200px; width: 5px; background: black"/></td>
-        <td>
-          <math xmlns="http://www.w3.org/1998/Math/MathML">
-            <mrow>
-              <mspace height="50px" depth="50px" width="5px"
-                      style="background: yellow" />
-              <mspace height="44px" depth="44px" width="50px"
-                      style="background: green;"/>
-            </mrow>
-          </math>
-        </td>
-      </tr>
-    </table>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/scale-stretchy-3-ref.xhtml b/layout/reftests/mathml/scale-stretchy-3-ref.xhtml
deleted file mode 100644
index 7a671c1cad..0000000000
--- a/layout/reftests/mathml/scale-stretchy-3-ref.xhtml
+++ /dev/null
@@ -1,27 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-  <head>
-    <title>Maximal size for a horizontal arrow stretched by scaling</title>
-  </head>
-
-  <body>
-
-    <table style="position: absolute;">
-      <tr align="center">
-        <td><div style="width: 200px; height: 5px; background: black"/></td>
-      </tr>
-      <tr align="center">
-        <td>
-          <math xmlns="http://www.w3.org/1998/Math/MathML">
-            <munder accentunder="false">
-              <mspace width="100px" height="5px" style="background: yellow"/>
-              <mspace width="110px" height="25px" depth="25px"
-                      style="background: red;"/>
-            </munder>
-          </math>
-        </td>
-      </tr>
-    </table>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/scale-stretchy-3.xhtml b/layout/reftests/mathml/scale-stretchy-3.xhtml
deleted file mode 100644
index a21b03f61d..0000000000
--- a/layout/reftests/mathml/scale-stretchy-3.xhtml
+++ /dev/null
@@ -1,43 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-  <head>
-    <title>Maximal size for a horizontal arrow stretched by scaling</title>
-  </head>
-
-  <body>
-
-    <table style="position: absolute;">
-      <tr align="center">
-        <td><div style="width: 200px; height: 5px; background: black"/></td>
-      </tr>
-      <tr align="center">
-        <td>
-          <math xmlns="http://www.w3.org/1998/Math/MathML">
-            <munder accentunder="false">
-              <mspace width="100px" height="5px" style="background: yellow"/>
-              <mo style="color: blue;">&#x21DB;</mo>
-            </munder>
-          </math>
-        </td>
-      </tr>
-    </table>
-
-    <table style="position: absolute;">
-      <tr align="center">
-        <td><div style="width: 200px; height: 5px; background: black"/></td>
-      </tr>
-      <tr align="center">
-        <td>
-          <math xmlns="http://www.w3.org/1998/Math/MathML">
-            <munder accentunder="false">
-              <mspace width="100px" height="5px" style="background: yellow"/>
-              <mspace width="110px" height="25px" depth="25px"
-                      style="background: red;"/>
-            </munder>
-          </math>
-        </td>
-      </tr>
-    </table>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/scale-stretchy-4-ref.xhtml b/layout/reftests/mathml/scale-stretchy-4-ref.xhtml
deleted file mode 100644
index 87cb94d305..0000000000
--- a/layout/reftests/mathml/scale-stretchy-4-ref.xhtml
+++ /dev/null
@@ -1,27 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-  <head>
-    <title>Minimal size for a horizontal arrow stretched by scaling</title>
-  </head>
-
-  <body>
-
-    <table style="position: absolute;">
-      <tr align="center">
-        <td><div style="width: 200px; height: 5px; background: black"/></td>
-      </tr>
-      <tr align="center">
-        <td>
-          <math xmlns="http://www.w3.org/1998/Math/MathML">
-            <munder>
-              <mspace width="100px" height="5px" style="background: yellow"/>
-              <mspace width="88px" height="25px" depth="25px"
-                      style="background: green;"/>
-            </munder>
-          </math>
-        </td>
-      </tr>
-    </table>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/scale-stretchy-4.xhtml b/layout/reftests/mathml/scale-stretchy-4.xhtml
deleted file mode 100644
index 693fdc7ed4..0000000000
--- a/layout/reftests/mathml/scale-stretchy-4.xhtml
+++ /dev/null
@@ -1,43 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-  <head>
-    <title>Minimal size for a horizontal arrow stretched by scaling</title>
-  </head>
-
-  <body>
-
-    <table style="position: absolute;">
-      <tr align="center">
-        <td><div style="width: 200px; height: 5px; background: black"/></td>
-      </tr>
-      <tr align="center">
-        <td>
-          <math xmlns="http://www.w3.org/1998/Math/MathML">
-            <munder>
-              <mspace width="100px" height="5px" style="background: yellow"/>
-              <mo style="color: blue;">&#x21DB;</mo>
-            </munder>
-          </math>
-        </td>
-      </tr>
-    </table>
-
-    <table style="position: absolute;">
-      <tr align="center">
-        <td><div style="width: 200px; height: 5px; background: black"/></td>
-      </tr>
-      <tr align="center">
-        <td>
-          <math xmlns="http://www.w3.org/1998/Math/MathML">
-            <munder>
-              <mspace width="100px" height="5px" style="background: yellow"/>
-              <mspace width="88px" height="25px" depth="25px"
-                      style="background: green;"/>
-            </munder>
-          </math>
-        </td>
-      </tr>
-    </table>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/scale-stretchy-5-ref.xhtml b/layout/reftests/mathml/scale-stretchy-5-ref.xhtml
deleted file mode 100644
index 8dc382e304..0000000000
--- a/layout/reftests/mathml/scale-stretchy-5-ref.xhtml
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-  <title>Largeop in display mode stretched by scaling</title>
-</head>
-
-<body>
-
-<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
-  <mo largeop="false">&#x2A0C;</mo>
-</math>
-
-</body>
-</html>
diff --git a/layout/reftests/mathml/scale-stretchy-5.xhtml b/layout/reftests/mathml/scale-stretchy-5.xhtml
deleted file mode 100644
index a79e757d73..0000000000
--- a/layout/reftests/mathml/scale-stretchy-5.xhtml
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-  <title>Largeop in display mode stretched by scaling</title>
-</head>
-
-<body>
-
-<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
-  <mo>&#x2A0C;</mo>
-</math>
-
-</body>
-</html>
diff --git a/layout/reftests/mathml/scriptlevel-movablelimits-1-ref.html b/layout/reftests/mathml/scriptlevel-movablelimits-1-ref.html
deleted file mode 100644
index bbffa910ab..0000000000
--- a/layout/reftests/mathml/scriptlevel-movablelimits-1-ref.html
+++ /dev/null
@@ -1,25 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title>Test accent/accentunder</title></head>
-  <body>    
-    <math displaystyle="false">
-      <munderover>
-	<mo>&#x2211;</mo>
-	<mi>a</mi>
-	<mi>b</mi>
-      </munderover>
-    </math>
-    <math displaystyle="false">
-      <munder>
-	<mo>&#x2211;</mo>
-	<mi>a</mi>
-      </munder>
-    </math>
-    <math displaystyle="false">
-      <mover>
-	<mo>&#x2211;</mo>
-	<mi>a</mi>
-      </mover>
-    </math>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/scriptlevel-movablelimits-1.html b/layout/reftests/mathml/scriptlevel-movablelimits-1.html
deleted file mode 100644
index f3ef2e53ba..0000000000
--- a/layout/reftests/mathml/scriptlevel-movablelimits-1.html
+++ /dev/null
@@ -1,25 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title>Test accent/accentunder</title></head>
-  <body>
-    <math displaystyle="false">
-      <munderover accentunder="true" accent="true">
-	<mo>&#x2211;</mo>
-	<mi>a</mi>
-	<mi>b</mi>
-      </munderover>
-    </math>
-    <math displaystyle="false">
-      <munder accentunder="true">
-	<mo>&#x2211;</mo>
-	<mi>a</mi>
-      </munder>
-    </math>
-    <math displaystyle="false">
-      <mover accent="true">
-	<mo>&#x2211;</mo>
-	<mi>a</mi>
-      </mover>
-    </math>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/semantics-1-ref.xhtml b/layout/reftests/mathml/semantics-1-ref.xhtml
deleted file mode 100644
index f5a6d4d493..0000000000
--- a/layout/reftests/mathml/semantics-1-ref.xhtml
+++ /dev/null
@@ -1,66 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-  <meta http-equiv="content-type"
-  content="application/xhtml+xml; charset=utf-8" />
-  <title>Various tests for semantics</title>
-  <style>
-    @font-face
-    {
-        font-family: Ahem;
-        src: url(../fonts/Ahem.ttf);
-    }
-    math, p {
-        font: 25px Ahem;
-    }
-  </style>
-</head>
-
-<body>
-<!-- displaystyle (bug 468059) -->
-<p><math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
-  <semantics>
-    <mstyle displaystyle="true">
-      <munderover>
-        <mo movablelimits="true">pXp</mo>
-        <mtext>XpXpXp</mtext>
-        <mtext>XpXpXp</mtext>
-      </munderover>
-    </mstyle>
-  </semantics>
-</math></p>
-
-<!-- unwanted whitespace (bug 512418) -->
-<p>XpXpXp<math xmlns="http://www.w3.org/1998/Math/MathML">
-    <mrow>
-      <mrow>
-        <mo>lcm</mo>
-        <mo>(</mo>
-        <mn>a</mn>
-        <mo>,</mo>
-        <mn>b</mn>
-        <mo>)</mo>
-      </mrow>
-      <mo>=</mo>
-      <mfrac>
-        <mrow>
-          <mo>(</mo>
-          <mn>a</mn>
-          <mo>&#x2062;</mo>
-          <mn>b</mn>
-          <mo>)</mo>
-        </mrow>
-        <mrow>
-          <mo>gcd</mo>
-          <mo>(</mo>
-          <mn>a</mn>
-          <mo>,</mo>
-          <mn>b</mn>
-          <mo>)</mo>
-        </mrow>
-      </mfrac>
-    </mrow>
-</math>XpXpXp</p>
-
-</body>
-</html>
diff --git a/layout/reftests/mathml/semantics-1.xhtml b/layout/reftests/mathml/semantics-1.xhtml
deleted file mode 100644
index d4ea92a4e5..0000000000
--- a/layout/reftests/mathml/semantics-1.xhtml
+++ /dev/null
@@ -1,66 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-  <meta http-equiv="content-type"
-  content="application/xhtml+xml; charset=utf-8" />
-  <title>Various tests for semantics</title>
-  <style>
-    @font-face
-    {
-        font-family: Ahem;
-        src: url(../fonts/Ahem.ttf);
-    }
-    math, p {
-        font: 25px Ahem;
-    }
-</style>
-</head>
-
-<body>
-<!-- displaystyle (bug 468059) -->
-<p><math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
-    <semantics>
-      <munderover>
-        <mo movablelimits="true">pXp</mo>
-        <mtext>XpXpXp</mtext>
-        <mtext>XpXpXp</mtext>
-      </munderover>
-    </semantics>
-</math></p>
-
-<!-- unwanted whitespace (bug 512418) -->
-<p>XpXpXp<math xmlns="http://www.w3.org/1998/Math/MathML">
-  <semantics>
-    <mrow>
-      <mrow>
-        <mo>lcm</mo>
-        <mo>(</mo>
-        <mn>a</mn>
-        <mo>,</mo>
-        <mn>b</mn>
-        <mo>)</mo>
-      </mrow>
-      <mo>=</mo>
-      <mfrac>
-        <mrow>
-          <mo>(</mo>
-          <mn>a</mn>
-          <mo>&#x2062;</mo>
-          <mn>b</mn>
-          <mo>)</mo>
-        </mrow>
-        <mrow>
-          <mo>gcd</mo>
-          <mo>(</mo>
-          <mn>a</mn>
-          <mo>,</mo>
-          <mn>b</mn>
-          <mo>)</mo>
-        </mrow>
-      </mfrac>
-    </mrow>
-  </semantics>
-</math>XpXpXp</p>
-
-</body>
-</html>
diff --git a/layout/reftests/mathml/semantics-2-ref.html b/layout/reftests/mathml/semantics-2-ref.html
deleted file mode 100644
index 43b52b17db..0000000000
--- a/layout/reftests/mathml/semantics-2-ref.html
+++ /dev/null
@@ -1,19 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <title>Various tests for semantics</title>
-  <meta charset="utf-8"/>
-</head>
-
-<body>
-  <p>Empty semantics: <math><mrow></mrow></math></p>
-  <p>annotation: <math><mrow><annotation>annotation</annotation></mrow></math></p>
-  <p>annotation-xml: <math><mrow><annotation-xml encoding="MathML-Presentation"><mtext>annotation-xml</mtext></annotation-xml></mrow></math></p>
-  <p>presentation MathML (no annotations): <math><mrow><mtext>presentation MathML</mtext></mrow></math></p>
-  <p>content MathML (no annotations): <math><mrow><csymbol>content MathML</csymbol></mrow></math></p>
-  <p>presentation MathML ; annotation: <math><mrow><mtext>presentation MathML</mtext></mrow></math></p>
-  <p>presentation MathML ; annotation-xml: <math><mrow><mtext>presentation MathML</mtext></mrow></math></p>
-  <p>content MathML ; annotation: <math><mrow><csymbol>content MathML</csymbol></mrow></math></p>
-  <p>content MathML ; annotation-xml: <math><mrow><csymbol>content MathML</csymbol></mrow></math></p>
-</body>
-</html>
diff --git a/layout/reftests/mathml/semantics-2.html b/layout/reftests/mathml/semantics-2.html
deleted file mode 100644
index 2c7d99ac3d..0000000000
--- a/layout/reftests/mathml/semantics-2.html
+++ /dev/null
@@ -1,19 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <title>Various tests for semantics</title>
-  <meta charset="utf-8"/>
-</head>
-
-<body>
-  <p>Empty semantics: <math><semantics></semantics></math></p>
-  <p>annotation: <math><semantics><annotation>annotation</annotation></semantics></math></p>
-  <p>annotation-xml: <math><semantics><annotation-xml encoding="MathML-Presentation"><mtext>annotation-xml</mtext></annotation-xml></semantics></math></p>
-  <p>presentation MathML (no annotations): <math><semantics><mtext>presentation MathML</mtext></semantics></math></p>
-  <p>content MathML (no annotations): <math><semantics><csymbol>content MathML</csymbol></semantics></math></p>
-  <p>presentation MathML ; annotation: <math><semantics><mtext>presentation MathML</mtext><annotation>annotation</annotation></semantics></math></p>
-  <p>presentation MathML ; annotation-xml: <math><semantics><mtext>presentation MathML</mtext><annotation-xml encoding="application/mathml-presentation+xml"><mtext>annotation-xml</mtext></annotation-xml></semantics></math></p>
-  <p>content MathML ; annotation: <math><semantics><csymbol>content MathML</csymbol><annotation>annotation</annotation></semantics></math></p>
-  <p>content MathML ; annotation-xml: <math><semantics><csymbol>content MathML</csymbol><annotation-xml encoding="application/mathml-presentation+xml"><mtext>annotation-xml</mtext></annotation-xml></semantics></math></p>
-</body>
-</html>
diff --git a/layout/reftests/mathml/semantics-3-ref.html b/layout/reftests/mathml/semantics-3-ref.html
deleted file mode 100644
index 8d42de963c..0000000000
--- a/layout/reftests/mathml/semantics-3-ref.html
+++ /dev/null
@@ -1,21 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <title>Various tests for semantics</title>
-   <meta charset="utf-8"/>
-</head>
-
-<body>
-  <p>annotation 1: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
-  <p>annotation 2: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
-  <p>annotation 3: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
-
-  <p>annotation-xml 1: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
-  <p>annotation-xml 2: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
-  <p>annotation-xml 3: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
-  <p>annotation-xml 4: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
-  <p>annotation-xml 5: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
-  <p>annotation-xml 6: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
-  <p>annotation-xml 7: <math><mrow><csymbol>Content MathML</csymbol></mrow></math></p>
-</body>
-</html>
diff --git a/layout/reftests/mathml/semantics-3.html b/layout/reftests/mathml/semantics-3.html
deleted file mode 100644
index 92a93c774f..0000000000
--- a/layout/reftests/mathml/semantics-3.html
+++ /dev/null
@@ -1,21 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <title>Various tests for semantics</title>
-   <meta charset="utf-8"/>
-</head>
-
-<body>
-  <p>annotation 1: <math><semantics><csymbol>Content MathML</csymbol><annotation>annotation</annotation><annotation>error</annotation><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml></semantics></math></p>
-  <p>annotation 2: <math><semantics><csymbol>Content MathML</csymbol><annotation encoding="application/x-tex">\sin x + 5</annotation><annotation>error</annotation><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml></semantics></math></p>
-  <p>annotation 3: <math><semantics><csymbol>Content MathML</csymbol><annotation src="external-resource">error</annotation><annotation>annotation</annotation><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml></semantics></math></p>
-
-  <p>annotation-xml 1: <math><semantics><csymbol>Content MathML</csymbol><annotation-xml encoding="application/mathml-presentation+xml"><mtext>application/mathml-presentation+xml</mtext></annotation-xml><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml><annotation>error</annotation></semantics></math></p>
-  <p>annotation-xml 2: <math><semantics><csymbol>Content MathML</csymbol><annotation-xml encoding="MathML-Presentation"><mtext>MathML-Presentation</mtext></annotation-xml><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml><annotation>error</annotation></semantics></math></p>
-  <p>annotation-xml 3: <math><semantics><csymbol>Content MathML</csymbol><annotation-xml encoding="image/svg+xml"><svg xmlns="http://www.w3.org/2000/svg" height="2em"><text y="1em">image/svg+xml</text></svg></annotation-xml><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml><annotation>error</annotation></semantics></math></p>
-  <p>annotation-xml 4: <math><semantics><csymbol>Content MathML</csymbol><annotation-xml encoding="SVG1.1"><svg xmlns="http://www.w3.org/2000/svg" height="2em"><text y="1em">SVG1.1</text></svg></annotation-xml><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml><annotation>error</annotation></semantics></math></p>
-  <p>annotation-xml 5: <math><semantics><csymbol>Content MathML</csymbol><annotation-xml encoding="application/xhtml+xml"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>application/xhtml+xml</title></head><body><p>application/xhtml+xml</p></body></html></annotation-xml><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml><annotation>error</annotation></math></p>
-  <p>annotation-xml 6: <math><semantics><csymbol>Content MathML</csymbol><annotation-xml encoding="text/html"><html><head><title>text/html</title></head><body><p>text/html</p></body></html></annotation-xml><annotation-xml encoding="application/mathml-presentation+xml"><mtext>error</mtext></annotation-xml><annotation>error</annotation></semantics></math></p>
-  <p>annotation-xml 7: <math><semantics><csymbol>Content MathML</csymbol><annotation-xml encoding="unknown"><mtext>error</mtext></annotation-xml><annotation-xml encoding="application/mathml-presentation+xml"><mtext>annotation-xml</mtext></annotation-xml><annotation>error</annotation></semantics></math></p>
-</body>
-</html>
diff --git a/layout/reftests/mathml/semantics-5-ref.html b/layout/reftests/mathml/semantics-5-ref.html
deleted file mode 100644
index 9184cdcc81..0000000000
--- a/layout/reftests/mathml/semantics-5-ref.html
+++ /dev/null
@@ -1,17 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <title>semantics - embellished operator (bug 21479)</title>
-  <meta charset="utf-8"/>
-</head>
-<body>
-  <p>
-    <math xmlns="http://www.w3.org/1998/Math/MathML">
-      <mover>
-        <mspace width="300px" height="10px" mathbackground="black"></mspace>
-        <mo>&#xaf;</mo>
-      </mover>
-    </math>
-  </p>
-</body>
-</html>
diff --git a/layout/reftests/mathml/semantics-5.html b/layout/reftests/mathml/semantics-5.html
deleted file mode 100644
index 0c2ad9541a..0000000000
--- a/layout/reftests/mathml/semantics-5.html
+++ /dev/null
@@ -1,17 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <title>semantics - embellished operator (bug 21479)</title>
-  <meta charset="utf-8"/>
-</head>
-<body>
-  <p>
-    <math xmlns="http://www.w3.org/1998/Math/MathML">
-      <mover>
-        <mspace width="300px" height="10px" mathbackground="black"></mspace>
-        <semantics><mo>&#xaf;</mo></semantics>
-      </mover>
-    </math>
-  </p>
-</body>
-</html>
diff --git a/layout/reftests/mathml/stretchy-1-ref.html b/layout/reftests/mathml/stretchy-1-ref.html
deleted file mode 100644
index 23950c02fa..0000000000
--- a/layout/reftests/mathml/stretchy-1-ref.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title>Test stretchy equal (bug 854339)</title></head>
-  <body>
-
-    <math>
-      <munder>
-        <mi>AVERYLONGBASE</mi>
-        <mo stretchy="false">=</mo>
-      </munder>
-    </math>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/stretchy-1.html b/layout/reftests/mathml/stretchy-1.html
deleted file mode 100644
index d4cfcb24f5..0000000000
--- a/layout/reftests/mathml/stretchy-1.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head><title>Test stretchy equal (bug 854339)</title></head>
-  <body>
-
-    <math>
-      <munder>
-        <mi>AVERYLONGBASE</mi>
-        <mo stretchy="true">=</mo>
-      </munder>
-    </math>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/stretchy-largeop-1-ref.html b/layout/reftests/mathml/stretchy-largeop-1-ref.html
deleted file mode 100644
index b65a38958f..0000000000
--- a/layout/reftests/mathml/stretchy-largeop-1-ref.html
+++ /dev/null
@@ -1,56 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>Largeop stretching</title>
-    <meta charset="utf-8"/>
-  </head>
-  <body>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mo id="mo0">(</mo>
-          <mo>∫</mo>
-          <mo id="mo1">)</mo>
-        <mrow>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mrow>
-          <mo id="mo0a">(</mo>
-          <mo>∫</mo>
-          <mo id="mo1a">)</mo>
-        <mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mo id="mo2">(</mo>
-          <mo>&Product;</mo>
-          <mo id="mo3">)</mo>
-        <mrow>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mrow>
-          <mo id="mo2a">(</mo>
-          <mo>&Product;</mo>
-          <mo id="mo3a">)</mo>
-        <mrow>
-      </math>
-    </p>
-    <p>
-      <!-- &bigotimes; included in the test to check for an assertion involving
-           the direction of the largeop pre-stretch -->
-      <math displaystyle="true">
-        <mrow>
-          <mo id="mo4">(</mo>
-          <mo>&bigotimes;</mo>
-          <mo id="mo5">)</mo>
-        <mrow>
-      </math>
-    </p>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/stretchy-largeop-1.html b/layout/reftests/mathml/stretchy-largeop-1.html
deleted file mode 100644
index bb63c8a435..0000000000
--- a/layout/reftests/mathml/stretchy-largeop-1.html
+++ /dev/null
@@ -1,81 +0,0 @@
-<!DOCTYPE html>
-<html class="reftest-wait">
-  <head>
-    <title>Largeop stretching</title>
-    <meta charset="utf-8"/>
-    <script type="text/javascript">
-
-      function verifyGreaterThan(aElement, aReference) {
-        /* Verify that the height of the element is greater than that of the
-           reference, and otherwise paint the element in red. */
-        var element = document.getElementById(aElement);
-        var ref = document.getElementById(aReference);
-        if (element.getBoundingClientRect().height -
-            ref.getBoundingClientRect().height <= 1) {
-          element.setAttribute("mathcolor", "red");
-        }
-      }
-
-      function doTest() {
-        /* Ensure that the parentheses in the displaystyle case stretch more
-           than the alternative. */
-        verifyGreaterThan("mo0", "mo0a");
-        verifyGreaterThan("mo1", "mo1a");
-        verifyGreaterThan("mo2", "mo2a");
-        verifyGreaterThan("mo3", "mo3a");
-
-        document.documentElement.removeAttribute("class");
-
-      }
-    </script>
-  </head>
-  <body onload="doTest();">
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mo id="mo0">(</mo>
-          <mo>∫</mo>
-          <mo id="mo1">)</mo>
-        <mrow>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mrow>
-          <mo id="mo0a">(</mo>
-          <mo>∫</mo>
-          <mo id="mo1a">)</mo>
-        <mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mo id="mo2">(</mo>
-          <mo>&Product;</mo>
-          <mo id="mo3">)</mo>
-        <mrow>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mrow>
-          <mo id="mo2a">(</mo>
-          <mo>&Product;</mo>
-          <mo id="mo3a">)</mo>
-        <mrow>
-      </math>
-    </p>
-    <p>
-      <!-- &bigotimes; included in the test to check for an assertion involving
-           the direction of the largeop pre-stretch -->
-      <math displaystyle="true">
-        <mrow>
-          <mo id="mo4">(</mo>
-          <mo>&bigotimes;</mo>
-          <mo id="mo5">)</mo>
-        <mrow>
-      </math>
-    </p>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/stretchy-largeop-2-ref.html b/layout/reftests/mathml/stretchy-largeop-2-ref.html
deleted file mode 100644
index d06d26527b..0000000000
--- a/layout/reftests/mathml/stretchy-largeop-2-ref.html
+++ /dev/null
@@ -1,111 +0,0 @@
-<!DOCTYPE html>
-<!-- Test that non-stretchy largeops are bigger in display mode -->
-
-<html>
-  <head>
-    <title>Largeop stretching</title>
-    <meta charset="utf-8"/>
-  </head>
-  <body>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo0">&bigodot;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo1">&bigoplus;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo2">&#x2a03;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo3">&#x2a05;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo4">&#x2a07;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo5">&#x2a08;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo6">&#x2a09;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo7">&#x2a0a;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo8">&#x2afc;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo9">&#x2aff;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef0">&bigodot;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef1">&bigoplus;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef2">&#x2a03;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef3">&#x2a05;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef4">&#x2a07;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef5">&#x2a08;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef6">&#x2a09;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef7">&#x2a0a;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef8">&#x2afc;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef9">&#x2aff;</mo>
-      </math>
-    </p>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/stretchy-largeop-2.html b/layout/reftests/mathml/stretchy-largeop-2.html
deleted file mode 100644
index c7f40580ec..0000000000
--- a/layout/reftests/mathml/stretchy-largeop-2.html
+++ /dev/null
@@ -1,137 +0,0 @@
-<!DOCTYPE html>
-<!-- Test that non-stretchy largeops are bigger in display mode -->
-
-<html class="reftest-wait">
-  <head>
-    <title>Largeop stretching</title>
-    <meta charset="utf-8"/>
-    <script type="text/javascript">
-
-      function verifyGreaterThan(aElement, aReference) {
-        /* Verify that the height of the element is greater than that of the
-           reference, and otherwise paint the element in red. */
-        var element = document.getElementById(aElement);
-        var ref = document.getElementById(aReference);
-        if (element.getBoundingClientRect().height -
-            ref.getBoundingClientRect().height <= 1) {
-          element.setAttribute("mathcolor", "red");
-        }
-      }
-
-      function doTest() {
-        /* Ensure that largeops are bigger in displaystyle */
-        var numTests = 10; // zero indexed
-        var opPrefix = "mo";
-        var refPrefix = "moRef";
-        for (var i = 0; i < numTests; i++)
-        {
-          verifyGreaterThan(opPrefix + i, refPrefix + i);
-        }
-        document.documentElement.removeAttribute("class");
-
-      }
-    </script>
-  </head>
-  <body onload="doTest();">
-    <p>
-      <math displaystyle="true">
-        <mo id="mo0">&bigodot;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo1">&bigoplus;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo2">&#x2a03;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo3">&#x2a05;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo4">&#x2a07;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo5">&#x2a08;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo6">&#x2a09;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo7">&#x2a0a;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo8">&#x2afc;</mo>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="mo9">&#x2aff;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef0">&bigodot;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef1">&bigoplus;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef2">&#x2a03;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef3">&#x2a05;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef4">&#x2a07;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef5">&#x2a08;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef6">&#x2a09;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef7">&#x2a0a;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef8">&#x2afc;</mo>
-      </math>
-    </p>
-    <p>
-      <math>
-        <mo id="moRef9">&#x2aff;</mo>
-      </math>
-    </p>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/stretchy-largeop-3-ref.html b/layout/reftests/mathml/stretchy-largeop-3-ref.html
deleted file mode 100644
index 83837c8b30..0000000000
--- a/layout/reftests/mathml/stretchy-largeop-3-ref.html
+++ /dev/null
@@ -1,123 +0,0 @@
-<!DOCTYPE html>
-<!-- Test that non-stretchy largeops do not stretch -->
-
-<html>
-  <head>
-    <title>Largeop stretching</title>
-    <meta charset="utf-8" />
-  </head>
-   <body>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo0">&bigodot;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo1">&bigoplus;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo2">&#x2a03;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo3">&#x2a05;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo4">&#x2a07;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo5">&#x2a08;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo6">&#x2a09;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo7">&#x2a0a;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo8">&#x2afc;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo9">&#x2aff;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="moRef0">&bigodot;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef1">&bigoplus;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef2">&#x2a03;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef3">&#x2a05;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef4">&#x2a07;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef5">&#x2a08;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef6">&#x2a09;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef7">&#x2a0a;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef8">&#x2afc;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef9">&#x2aff;</mo>
-      </math>
-    </p>
-  </body>
-</html>
\ No newline at end of file
diff --git a/layout/reftests/mathml/stretchy-largeop-3.html b/layout/reftests/mathml/stretchy-largeop-3.html
deleted file mode 100644
index 5fe3149894..0000000000
--- a/layout/reftests/mathml/stretchy-largeop-3.html
+++ /dev/null
@@ -1,156 +0,0 @@
-<!DOCTYPE html>
-<!-- Test that non-stretchy largeops do not stretch -->
-
-<html class="reftest-wait">
-  <head>
-    <title>Largeop stretching</title>
-    <meta charset="utf-8" />
-    <script type="text/javascript">
-
-      function almostEqual(aX, aY) {
-        var epsilon = 2;
-        return Math.abs(aX - aY) < epsilon;
-      }
-
-      function verifySize(aElement, aReference) {
-        /* Verify if the size of the element matches the reference, and
-           otherwise paint the element in red. */
-        var element = document.getElementById(aElement);
-        var ref = document.getElementById(aReference);
-        if (!almostEqual(element.getBoundingClientRect().height,
-                         ref.getBoundingClientRect().height) ||
-            !almostEqual(element.getBoundingClientRect().width,
-                         ref.getBoundingClientRect().width)) {
-          element.setAttribute("mathcolor", "red");
-        }
-      }
-
-      function doTest() {
-        /* Ensure that largeops are bigger in displaystyle */
-        var numTests = 10; // zero indexed
-        var opPrefix = "mo";
-        var refPrefix = "moRef";
-        for (var i = 0; i < numTests; i++)
-        {
-          verifySize(opPrefix + i, refPrefix + i);
-        }
-        document.documentElement.removeAttribute("class");
-
-      }
-    </script>
-  </head>
-  <body onload="doTest();">
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo0">&bigodot;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo1">&bigoplus;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo2">&#x2a03;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo3">&#x2a05;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo4">&#x2a07;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo5">&#x2a08;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo6">&#x2a09;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo7">&#x2a0a;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo8">&#x2afc;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mrow>
-          <mspace height="3em" />
-          <mo id="mo9">&#x2aff;</mo>
-        </mrow>
-      </math>
-    </p>
-    <p>
-      <math displaystyle="true">
-        <mo id="moRef0">&bigodot;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef1">&bigoplus;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef2">&#x2a03;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef3">&#x2a05;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef4">&#x2a07;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef5">&#x2a08;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef6">&#x2a09;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef7">&#x2a0a;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef8">&#x2afc;</mo>
-      </math>
-      <math displaystyle="true">
-        <mo id="moRef9">&#x2aff;</mo>
-      </math>
-    </p>
-  </body>
-</html>
diff --git a/layout/reftests/mathml/subscript-italic-correction-ref.html b/layout/reftests/mathml/subscript-italic-correction-ref.html
deleted file mode 100644
index a4527325cd..0000000000
--- a/layout/reftests/mathml/subscript-italic-correction-ref.html
+++ /dev/null
@@ -1,36 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>subscript</title>
-    <meta charset="utf-8"/>
-  </head>
-  <body style="background: #5f5; font-size: 50px;">
-
-    <div>
-      <math>
-        <msubsup>
-          <mi mathbackground="#5f5">f</mi>
-          <mspace id="s0" width="50px" height="50px" mathbackground="blue"/>
-          <mspace id="s1" width="50px" height="50px" mathbackground="blue"/>
-        </msubsup>
-      </math>
-    </div>
-
-    <br/>
-
-    <div>
-      <math>
-        <mmultiscripts>
-          <mi mathbackground="#5f5">f</mi>
-          <mspace id="s2" width="50px" height="50px" mathbackground="blue"/>
-          <mspace id="s3" width="50px" height="50px" mathbackground="blue"/>
-          <mspace id="s4" width="50px" height="50px" mathbackground="blue"/>
-          <mspace id="s5" width="50px" height="50px" mathbackground="blue"/>
-          <mspace id="s6" width="50px" height="50px" mathbackground="blue"/>
-          <mspace id="s7" width="50px" height="50px" mathbackground="blue"/>
-        </mmultiscripts>
-      </math>
-    </div>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/subscript-italic-correction.html b/layout/reftests/mathml/subscript-italic-correction.html
deleted file mode 100644
index 04be7ba5f9..0000000000
--- a/layout/reftests/mathml/subscript-italic-correction.html
+++ /dev/null
@@ -1,61 +0,0 @@
-<!DOCTYPE html>
-<html class="reftest-wait">
-  <head>
-    <title>subscript</title>
-    <meta charset="utf-8"/>
-    <script type="text/javascript">
-      function verifyItalicCorrections()
-      {
-        var epsilon = 2;
-        for (var i = 0; i < 8; i += 2) {
-          var sub = document.getElementById("s" + i);
-          var sup = document.getElementById("s" + (i+1));
-          var italicCorrection =
-           sup.getBoundingClientRect().left - sub.getBoundingClientRect().left;
-           if (italicCorrection < epsilon) {
-             return false;
-           }
-        }
-        return true;
-      }
-
-      function doTest()
-      {
-        if (verifyItalicCorrections()) {
-          document.body.style.background = "#5f5";
-        }
-        document.documentElement.removeAttribute("class");
-      }
-      window.addEventListener("MozReftestInvalidate", doTest);
-    </script>
-  </head>
-  <body style="background: #f00; font-size: 50px;">
-
-    <div>
-      <math>
-        <msubsup>
-          <mi mathbackground="#5f5">f</mi>
-          <mspace id="s0" width="50px" height="50px" mathbackground="blue"/>
-          <mspace id="s1" width="50px" height="50px" mathbackground="blue"/>
-        </msubsup>
-      </math>
-    </div>
-
-    <br/>
-
-    <div>
-      <math>
-        <mmultiscripts>
-          <mi mathbackground="#5f5">f</mi>
-          <mspace id="s2" width="50px" height="50px" mathbackground="blue"/>
-          <mspace id="s3" width="50px" height="50px" mathbackground="blue"/>
-          <mspace id="s4" width="50px" height="50px" mathbackground="blue"/>
-          <mspace id="s5" width="50px" height="50px" mathbackground="blue"/>
-          <mspace id="s6" width="50px" height="50px" mathbackground="blue"/>
-          <mspace id="s7" width="50px" height="50px" mathbackground="blue"/>
-        </mmultiscripts>
-      </math>
-    </div>
-
-  </body>
-</html>
diff --git a/layout/reftests/mathml/underbar-width-1-ref.xhtml b/layout/reftests/mathml/underbar-width-1-ref.xhtml
deleted file mode 100644
index 737673ccb1..0000000000
--- a/layout/reftests/mathml/underbar-width-1-ref.xhtml
+++ /dev/null
@@ -1,26 +0,0 @@
-<html xmlns="http://www.w3.org/1999/xhtml">
-  <head>
-    <style type="text/css">
-      html { background-color: grey; }
-      div { display: inline-block;
-            font-size: 30px;
-            line-height: 60px; /* Ensure space for underbar */
-            border: 1px solid white;
-            padding: 2px; /* 10% error allowed in char selection */
-            background-color: black;
-            color: red; }
-    </style>
-  </head>
-<body>
-  <div>
-    <math xmlns="http://www.w3.org/1998/Math/MathML">
-      <mphantom>
-	<munder>
-	  <mn>1</mn>
-	  <mo>&#x332;</mo>
-	</munder>
-      </mphantom>
-    </math>
-  </div>
-</body>
-</html>
diff --git a/layout/reftests/mathml/underbar-width-1.xhtml b/layout/reftests/mathml/underbar-width-1.xhtml
deleted file mode 100644
index 473b25b91d..0000000000
--- a/layout/reftests/mathml/underbar-width-1.xhtml
+++ /dev/null
@@ -1,25 +0,0 @@
-<html xmlns="http://www.w3.org/1999/xhtml">
-  <head>
-    <title>Check width of stretchy OverBar</title>
-    <style type="text/css">
-      html { background-color: grey; }
-      div { display: inline-block;
-            font-size: 30px;
-            line-height: 60px; /* Ensure space for underbar */
-            border: 1px solid white;
-            padding: 2px; /* 10% error allowed in char selection */
-            background-color: black;
-            color: black; }
-    </style>
-  </head>
-<body>
-  <div>
-    <math xmlns="http://www.w3.org/1998/Math/MathML">
-      <munder>
-	<mn>1</mn>
-	<mo>&#x332;</mo>
-      </munder>
-    </math>
-  </div>
-</body>
-</html>
-- 
cgit v1.2.3