From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 02:47:55 +0200
Subject: Adding upstream version 124.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../css-valuesandunits/ch-width-1-ref.html         | 41 ++++++++++++++
 layout/reftests/css-valuesandunits/ch-width-1.html | 62 ++++++++++++++++++++++
 layout/reftests/css-valuesandunits/reftest.list    | 19 +++++++
 .../css-valuesandunits/unit-rem-div-fontsize.html  | 13 +++++
 .../unit-rem-div-width-inner.html                  | 13 +++++
 .../unit-rem-div-width-outer.html                  | 13 +++++
 .../css-valuesandunits/unit-rem-iframe-inside.html |  7 +++
 .../css-valuesandunits/unit-rem-iframe.html        |  6 +++
 .../unit-rem-ref-iframe-inside.html                |  7 +++
 .../css-valuesandunits/unit-rem-ref-iframe.html    |  6 +++
 .../css-valuesandunits/unit-rem-ref-resource.svg   |  4 ++
 .../unit-rem-ref-root-fontsize.html                |  7 +++
 .../unit-rem-ref-root-width.html                   | 12 +++++
 .../reftests/css-valuesandunits/unit-rem-ref.html  | 13 +++++
 .../reftests/css-valuesandunits/unit-rem-ref.svg   |  5 ++
 .../unit-rem-ref2-root-fontsize.html               |  7 +++
 .../css-valuesandunits/unit-rem-resource.svg       |  6 +++
 .../css-valuesandunits/unit-rem-root-fontsize.html |  7 +++
 .../css-valuesandunits/unit-rem-root-width.html    | 12 +++++
 layout/reftests/css-valuesandunits/unit-rem.svg    |  5 ++
 .../css-valuesandunits/unit-vh-vw-iframe.html      | 14 +++++
 .../unit-vh-vw-overflow-auto-iframe.html           | 21 ++++++++
 .../unit-vh-vw-overflow-auto-ref-iframe.html       | 37 +++++++++++++
 .../unit-vh-vw-overflow-auto-ref.html              | 15 ++++++
 .../unit-vh-vw-overflow-auto.html                  | 14 +++++
 .../unit-vh-vw-overflow-scroll-iframe.html         | 22 ++++++++
 .../unit-vh-vw-overflow-scroll-ref-iframe.html     | 36 +++++++++++++
 .../unit-vh-vw-overflow-scroll-ref.html            | 14 +++++
 .../unit-vh-vw-overflow-scroll-x-iframe.html       | 18 +++++++
 .../unit-vh-vw-overflow-scroll-x-ref-iframe.html   | 28 ++++++++++
 .../unit-vh-vw-overflow-scroll-x-ref.html          | 14 +++++
 .../unit-vh-vw-overflow-scroll-x.html              | 14 +++++
 .../unit-vh-vw-overflow-scroll-y-iframe.html       | 18 +++++++
 .../unit-vh-vw-overflow-scroll-y-ref-iframe.html   | 28 ++++++++++
 .../unit-vh-vw-overflow-scroll-y-ref.html          | 14 +++++
 .../unit-vh-vw-overflow-scroll-y.html              | 14 +++++
 .../unit-vh-vw-overflow-scroll.html                | 14 +++++
 .../css-valuesandunits/unit-vh-vw-ref-iframe.html  | 14 +++++
 .../css-valuesandunits/unit-vh-vw-ref.html         | 14 +++++
 .../css-valuesandunits/unit-vh-vw-zoom-ref.html    | 18 +++++++
 .../css-valuesandunits/unit-vh-vw-zoom.html        | 18 +++++++
 layout/reftests/css-valuesandunits/unit-vh-vw.html | 14 +++++
 42 files changed, 678 insertions(+)
 create mode 100644 layout/reftests/css-valuesandunits/ch-width-1-ref.html
 create mode 100644 layout/reftests/css-valuesandunits/ch-width-1.html
 create mode 100644 layout/reftests/css-valuesandunits/reftest.list
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem-div-fontsize.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem-div-width-inner.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem-div-width-outer.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem-iframe-inside.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem-iframe.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem-ref-iframe-inside.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem-ref-iframe.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem-ref-resource.svg
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem-ref-root-fontsize.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem-ref-root-width.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem-ref.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem-ref.svg
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem-ref2-root-fontsize.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem-resource.svg
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem-root-fontsize.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem-root-width.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-rem.svg
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-iframe.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-overflow-auto-iframe.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-overflow-auto-ref-iframe.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-overflow-auto-ref.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-overflow-auto.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-iframe.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-ref-iframe.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-ref.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-x-iframe.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-x-ref-iframe.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-x-ref.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-x.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-y-iframe.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-y-ref-iframe.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-y-ref.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-y.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-ref-iframe.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-ref.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-zoom-ref.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw-zoom.html
 create mode 100644 layout/reftests/css-valuesandunits/unit-vh-vw.html

(limited to 'layout/reftests/css-valuesandunits')

diff --git a/layout/reftests/css-valuesandunits/ch-width-1-ref.html b/layout/reftests/css-valuesandunits/ch-width-1-ref.html
new file mode 100644
index 0000000000..588234be72
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/ch-width-1-ref.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<style>
+body {
+  font-family: courier new, courier, monospace;
+  line-height: 1;
+}
+div {
+  width: 120px;
+  float: left;
+}
+span {
+  display: inline-block;
+  height: 1em;
+  background: lightgreen;
+}
+</style>
+<p>No red should appear at the tips of the rectangles:</p>
+<script>
+for (var i = 10; i <= 16; i++) {
+  var div = document.createElement("div");
+  div.style.fontSize = i + "px";
+  document.body.appendChild(div);
+  for (var j = 1; j <= 10; j++) {
+    // green span containing the specified number of chars
+    var b = document.createElement("span");
+    b.className = "b";
+    b.textContent = "\xA0".repeat(j);
+    div.appendChild(b);
+    div.appendChild(document.createElement("br"));
+    div.appendChild(document.createElement("br"));
+  }
+  for (var j = 1; j <= 10; j++) {
+    var b = document.createElement("span");
+    b.className = "b";
+    b.textContent = "\xA0".repeat(j);
+    div.appendChild(b);
+    div.appendChild(document.createElement("br"));
+    div.appendChild(document.createElement("br"));
+  }
+}
+</script>
diff --git a/layout/reftests/css-valuesandunits/ch-width-1.html b/layout/reftests/css-valuesandunits/ch-width-1.html
new file mode 100644
index 0000000000..92cd7bdcf6
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/ch-width-1.html
@@ -0,0 +1,62 @@
+<!DOCTYPE html>
+<style>
+body {
+  font-family: courier new, courier, monospace;
+  line-height: 1;
+}
+div {
+  width: 120px;
+  float: left;
+}
+span {
+  display: inline-block;
+  height: 1em;
+}
+span.a {
+  background: red;
+}
+span.b {
+  position: relative;
+  top: -1em;
+  height: 1em;
+  background: lightgreen;
+}
+</style>
+<p>No red should appear at the tips of the rectangles:</p>
+<script>
+for (var i = 10; i <= 16; i++) {
+  var div = document.createElement("div");
+  div.style.fontSize = i + "px";
+  document.body.appendChild(div);
+  for (var j = 1; j <= 10; j++) {
+    // create a red span with width specified in 'ch' units
+    var a = document.createElement("span");
+    a.className = "a";
+    a.style.width = j + "ch";
+    a.textContent = "\xA0";
+    div.appendChild(a);
+    div.appendChild(document.createElement("br"));
+    // overlay it with a green span containing the equivalent number of chars
+    var b = document.createElement("span");
+    b.className = "b";
+    b.textContent = "\xA0".repeat(j);
+    div.appendChild(b);
+    div.appendChild(document.createElement("br"));
+  }
+  for (var j = 1; j <= 10; j++) {
+    // create a red span containing a specific number of chars
+    var a = document.createElement("span");
+    a.className = "a";
+    a.textContent = "\xA0".repeat(j);
+    div.appendChild(a);
+    div.appendChild(document.createElement("br"));
+    // overlay it with a green span with width specified in 'ch' units
+    var b = document.createElement("span");
+    b.className = "b";
+    b.style.width = j + "ch";
+    b.textContent = "\xA0";
+    div.appendChild(b);
+    div.appendChild(document.createElement("br"));
+  }
+}
+</script>
diff --git a/layout/reftests/css-valuesandunits/reftest.list b/layout/reftests/css-valuesandunits/reftest.list
new file mode 100644
index 0000000000..ce6a4e0623
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/reftest.list
@@ -0,0 +1,19 @@
+skip-if(ThreadSanitizer) == unit-rem-div-fontsize.html unit-rem-ref.html
+== unit-rem-div-width-inner.html unit-rem-ref.html
+== unit-rem-div-width-outer.html unit-rem-ref.html
+fuzzy-if(winWidget,0-27,0-4) == unit-rem-iframe.html unit-rem-ref-iframe.html
+== unit-rem-root-fontsize.html unit-rem-ref-root-fontsize.html
+== unit-rem-root-fontsize.html unit-rem-ref2-root-fontsize.html
+== unit-rem-root-width.html unit-rem-ref-root-width.html
+== unit-rem.svg unit-rem-ref.svg
+== unit-vh-vw.html unit-vh-vw-ref.html
+== unit-vh-vw-zoom.html unit-vh-vw-zoom-ref.html
+fuzzy(0-1,0-4) fuzzy-if(winWidget,0-4,0-51) fuzzy-if(gtkWidget,0-1,0-29) fuzzy-if(cocoaWidget,0-1,0-29) == unit-vh-vw-overflow-auto.html unit-vh-vw-overflow-auto-ref.html # fuzzy due to anti-aliasing pixels in scrollbar redendering
+
+# These tests should probably be removed, see bug 1393603.
+fails-if(!Android) == unit-vh-vw-overflow-scroll.html unit-vh-vw-overflow-scroll-ref.html
+fails-if(!Android) == unit-vh-vw-overflow-scroll-x.html unit-vh-vw-overflow-scroll-x-ref.html
+fails-if(!Android) == unit-vh-vw-overflow-scroll-y.html unit-vh-vw-overflow-scroll-y-ref.html
+fuzzy-if(winWidget,0-4,0-51) fuzzy-if(gtkWidget,0-1,0-12) fuzzy-if(cocoaWidget,0-1,0-29) == unit-vh-vw-overflow-auto.html unit-vh-vw-overflow-scroll.html
+
+== ch-width-1.html ch-width-1-ref.html
diff --git a/layout/reftests/css-valuesandunits/unit-rem-div-fontsize.html b/layout/reftests/css-valuesandunits/unit-rem-div-fontsize.html
new file mode 100644
index 0000000000..7f6ceedcf9
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-div-fontsize.html
@@ -0,0 +1,13 @@
+<style>
+:root { font-size: 20px }
+body { font-size: 25px }
+div {
+  font-size: 1.5rem;
+  width: 300px;
+}
+#a {
+  border-bottom: 1px solid #f00;
+}
+</style>
+
+<body>Level 1<div id=a>Level 2<div id=b>Level 3</div></div></body>
diff --git a/layout/reftests/css-valuesandunits/unit-rem-div-width-inner.html b/layout/reftests/css-valuesandunits/unit-rem-div-width-inner.html
new file mode 100644
index 0000000000..ab0948bd8f
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-div-width-inner.html
@@ -0,0 +1,13 @@
+<style>
+:root { font-size: 20px }
+body { font-size: 25px }
+div {
+  font-size: 30px;
+  width: 15rem;
+}
+#b {
+  border-bottom: 1px solid #f00;
+}
+</style>
+
+<body>Level 1<div id=a>Level 2<div id=b>Level 3</div></div></body>
diff --git a/layout/reftests/css-valuesandunits/unit-rem-div-width-outer.html b/layout/reftests/css-valuesandunits/unit-rem-div-width-outer.html
new file mode 100644
index 0000000000..6203e26628
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-div-width-outer.html
@@ -0,0 +1,13 @@
+<style>
+:root { font-size: 20px }
+body { font-size: 25px }
+div {
+  font-size: 30px;
+  width: 15rem;
+}
+#a {
+  border-bottom: 1px solid #f00;
+}
+</style>
+
+<body>Level 1<div id=a>Level 2<div id=b>Level 3</div></div></body>
diff --git a/layout/reftests/css-valuesandunits/unit-rem-iframe-inside.html b/layout/reftests/css-valuesandunits/unit-rem-iframe-inside.html
new file mode 100644
index 0000000000..954fcf4e32
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-iframe-inside.html
@@ -0,0 +1,7 @@
+<style>
+:root { font-size: 20px }
+body { font-size: 25px }
+div { font-size: 1.5rem }
+</style>
+
+<body><div>Inside</div></body>
diff --git a/layout/reftests/css-valuesandunits/unit-rem-iframe.html b/layout/reftests/css-valuesandunits/unit-rem-iframe.html
new file mode 100644
index 0000000000..a91350a2a1
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-iframe.html
@@ -0,0 +1,6 @@
+<style>
+:root { font-size: 10px }
+body { font-size: 12px }
+</style>
+
+<body>Outside<iframe src=unit-rem-iframe-inside.html></body>
diff --git a/layout/reftests/css-valuesandunits/unit-rem-ref-iframe-inside.html b/layout/reftests/css-valuesandunits/unit-rem-ref-iframe-inside.html
new file mode 100644
index 0000000000..57bd094f84
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-ref-iframe-inside.html
@@ -0,0 +1,7 @@
+<style>
+:root { font-size: 20px }
+body { font-size: 25px }
+div { font-size: 30px }
+</style>
+
+<body><div>Inside</div></body>
diff --git a/layout/reftests/css-valuesandunits/unit-rem-ref-iframe.html b/layout/reftests/css-valuesandunits/unit-rem-ref-iframe.html
new file mode 100644
index 0000000000..7610ba3b52
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-ref-iframe.html
@@ -0,0 +1,6 @@
+<style>
+:root { font-size: 10px }
+body { font-size: 12px }
+</style>
+
+<body>Outside<iframe src=unit-rem-ref-iframe-inside.html></body>
diff --git a/layout/reftests/css-valuesandunits/unit-rem-ref-resource.svg b/layout/reftests/css-valuesandunits/unit-rem-ref-resource.svg
new file mode 100644
index 0000000000..d58accb9d0
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-ref-resource.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" version="1.1"
+     style="font-size: 30px">
+  <rect id="rect" fill="green" width="200px" height="50px" />
+</svg>
diff --git a/layout/reftests/css-valuesandunits/unit-rem-ref-root-fontsize.html b/layout/reftests/css-valuesandunits/unit-rem-ref-root-fontsize.html
new file mode 100644
index 0000000000..da2cb1e7b1
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-ref-root-fontsize.html
@@ -0,0 +1,7 @@
+<style>
+:root {
+  font-size: 1.5em;
+}
+</style>
+
+<body>Hello</body>
diff --git a/layout/reftests/css-valuesandunits/unit-rem-ref-root-width.html b/layout/reftests/css-valuesandunits/unit-rem-ref-root-width.html
new file mode 100644
index 0000000000..3cf785e587
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-ref-root-width.html
@@ -0,0 +1,12 @@
+<style>
+:root {
+  font-size: 30px;
+  width: 300px;
+  border-bottom: 1px solid #f00;
+}
+body {
+  font-size: 25px;
+}
+</style>
+
+<body>Level 1</body>
diff --git a/layout/reftests/css-valuesandunits/unit-rem-ref.html b/layout/reftests/css-valuesandunits/unit-rem-ref.html
new file mode 100644
index 0000000000..afcdb91ad6
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-ref.html
@@ -0,0 +1,13 @@
+<style>
+:root { font-size: 20px }
+body { font-size: 25px }
+div {
+  font-size: 30px;
+  width: 300px;
+}
+#a {
+  border-bottom: 1px solid #f00;
+}
+</style>
+
+<body>Level 1<div id=a>Level 2<div id=b>Level 3</div></div></body>
diff --git a/layout/reftests/css-valuesandunits/unit-rem-ref.svg b/layout/reftests/css-valuesandunits/unit-rem-ref.svg
new file mode 100644
index 0000000000..18bea032f4
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-ref.svg
@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" version="1.1"
+     xmlns:xlink="http://www.w3.org/1999/xlink"
+     style="font-size: 20px">
+  <use xlink:href="unit-rem-ref-resource.svg#rect" />
+</svg>
diff --git a/layout/reftests/css-valuesandunits/unit-rem-ref2-root-fontsize.html b/layout/reftests/css-valuesandunits/unit-rem-ref2-root-fontsize.html
new file mode 100644
index 0000000000..600ddcd595
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-ref2-root-fontsize.html
@@ -0,0 +1,7 @@
+<style>
+body {
+  font-size: 1.5em;
+}
+</style>
+
+<body>Hello</body>
diff --git a/layout/reftests/css-valuesandunits/unit-rem-resource.svg b/layout/reftests/css-valuesandunits/unit-rem-resource.svg
new file mode 100644
index 0000000000..a7b751deb0
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-resource.svg
@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" version="1.1"
+     style="font-size: 30px">
+  <!-- We don't support 'rem' in the width attribute because that's nsSVGLength
+       code, so we use indirection through 'em' and 'font-size'. -->
+  <rect id="rect" fill="green" style="font-size: 2rem" width="5em" height="50px" />
+</svg>
diff --git a/layout/reftests/css-valuesandunits/unit-rem-root-fontsize.html b/layout/reftests/css-valuesandunits/unit-rem-root-fontsize.html
new file mode 100644
index 0000000000..69f1943221
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-root-fontsize.html
@@ -0,0 +1,7 @@
+<style>
+:root {
+  font-size: 1.5rem;
+}
+</style>
+
+<body>Hello</body>
diff --git a/layout/reftests/css-valuesandunits/unit-rem-root-width.html b/layout/reftests/css-valuesandunits/unit-rem-root-width.html
new file mode 100644
index 0000000000..3e41edadb7
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-root-width.html
@@ -0,0 +1,12 @@
+<style>
+:root {
+  font-size: 30px;
+  width: 10rem;
+  border-bottom: 1px solid #f00;
+}
+body {
+  font-size: 25px;
+}
+</style>
+
+<body>Level 1</body>
diff --git a/layout/reftests/css-valuesandunits/unit-rem.svg b/layout/reftests/css-valuesandunits/unit-rem.svg
new file mode 100644
index 0000000000..197e80d490
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem.svg
@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" version="1.1"
+     xmlns:xlink="http://www.w3.org/1999/xlink"
+     style="font-size: 20px">
+  <use xlink:href="unit-rem-resource.svg#rect" />
+</svg>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-iframe.html b/layout/reftests/css-valuesandunits/unit-vh-vw-iframe.html
new file mode 100644
index 0000000000..437873782e
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-iframe.html
@@ -0,0 +1,14 @@
+<style>
+  div {
+    width: 10px;
+    height: 10px;
+    background-color: #d64203;
+  }
+</style>
+
+<body>
+  <div style="width: 50vw"></div>
+  <div style="height: 25vh"></div>
+  <div style="width: 35vmin"></div>
+  <div style="height: 25vmax"></div>
+</body>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-auto-iframe.html b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-auto-iframe.html
new file mode 100644
index 0000000000..203b6efa95
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-auto-iframe.html
@@ -0,0 +1,21 @@
+<style>
+  body { overflow: auto }
+  div {
+    width: 10px;
+    height: 10px;
+    background-color: #d64203;
+  }
+</style>
+
+<body>
+  <div style="width: 50vw"></div>
+  <div style="height: 25vh"></div>
+  <div style="width: 35vmin"></div>
+  <div style="height: 25vmax"></div>
+
+  <!--
+  Deliberately make the scrollbars appear to ensure that with 'overflow: auto'
+  viewport units are calculated as if the scrollbars are _not_ there.
+  -->
+  <div style="width: 500px; height: 500px; background-color: black">
+</body>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-auto-ref-iframe.html b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-auto-ref-iframe.html
new file mode 100644
index 0000000000..2803e712b5
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-auto-ref-iframe.html
@@ -0,0 +1,37 @@
+<style>
+  body { overflow: hidden }
+  div {
+    width: 10px;
+    height: 10px;
+    background-color: #d64203;
+  }
+</style>
+
+<body>
+  <div id="a"></div>
+  <div id="b"></div>
+  <div id="c"></div>
+  <div id="d"></div>
+
+  <!--
+  Deliberately make the scrollbars appear to ensure that with 'overflow: auto'
+  viewport units are calculated as if the scrollbars are _not_ there.
+  -->
+  <div style="width: 500px; height: 500px; background-color: black">
+</body>
+
+<script>
+  // client{Width, Height} consist of the area _inside_ the scrollbars, so we need
+  // to calculate these units with 'overflow: hidden' set to ensure that there are
+  // no scrollbars. This reflects the fact that with 'overflow: auto' set, viewport
+  // units are sized without taking the scrollbars into account.
+  var vw = 0.01 * document.body.clientWidth;
+  var vh = 0.01 * document.body.clientHeight;
+  var vmin = Math.min(vw, vh);
+  var vmax = Math.max(vw, vh);
+  document.body.style.overflow = "auto";
+  document.getElementById('a').style.width = (50 * vw) + "px";
+  document.getElementById('b').style.height = (25 * vh) + "px";
+  document.getElementById('c').style.width = (35 * vmin) + "px";
+  document.getElementById('d').style.height = (25 * vmax) + "px";
+</script>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-auto-ref.html b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-auto-ref.html
new file mode 100644
index 0000000000..5bbe4b17c0
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-auto-ref.html
@@ -0,0 +1,15 @@
+<style>
+  body { background-color: black }
+  iframe {
+    width: 100px;
+    height: 200px;
+    margin: 0px;
+    border: 0px;
+  }
+</style>
+
+<body>
+  <iframe src="unit-vh-vw-overflow-auto-ref-iframe.html"></iframe>
+  <iframe src="unit-vh-vw-overflow-auto-ref-iframe.html"></iframe>
+</body>
+
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-auto.html b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-auto.html
new file mode 100644
index 0000000000..1f68c3b1d9
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-auto.html
@@ -0,0 +1,14 @@
+<style>
+  body { background-color: black }
+  iframe {
+    width: 100px;
+    height: 200px;
+    margin: 0px;
+    border: 0px;
+  }
+</style>
+
+<body>
+  <iframe src="unit-vh-vw-overflow-auto-iframe.html"></iframe>
+  <iframe src="unit-vh-vw-overflow-auto-iframe.html"></iframe>
+</body>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-iframe.html b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-iframe.html
new file mode 100644
index 0000000000..6f9960f6e5
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-iframe.html
@@ -0,0 +1,22 @@
+<style>
+  body { overflow: scroll }
+  div {
+    width: 10px;
+    height: 10px;
+    background-color: #d64203;
+  }
+</style>
+
+<body>
+  <div style="width: 50vw"></div>
+  <div style="height: 25vh"></div>
+  <div style="width: 35vmin"></div>
+  <div style="height: 25vmax"></div>
+
+  <!--
+  Ensure that the scroller positioned the same way as it would be in the
+  'overflow: auto' case. We'll have scrollbars either way, but we don't
+  want the '!=' reftest to spuriously succeed because of the scrollers.
+  -->
+  <div style="width: 500px; height: 500px; background-color: black">
+</body>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-ref-iframe.html b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-ref-iframe.html
new file mode 100644
index 0000000000..c06fc4476f
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-ref-iframe.html
@@ -0,0 +1,36 @@
+<style>
+  body { overflow: scroll }
+  div {
+    width: 10px;
+    height: 10px;
+    background-color: #d64203;
+  }
+</style>
+
+<body>
+  <div id="a"></div>
+  <div id="b"></div>
+  <div id="c"></div>
+  <div id="d"></div>
+
+  <!--
+  Ensure that the scroller positioned the same way as it would be in the
+  'overflow: auto' case. We'll have scrollbars either way, but we don't
+  want the '!=' reftest to spuriously succeed because of the scrollers.
+  -->
+  <div style="width: 500px; height: 500px; background-color: black">
+</body>
+
+<script>
+  // client{Width, Height} consist of the area _inside_ the scrollbars, so these
+  // manually calculated units reflect the fact that with 'overflow: scroll' set,
+  // viewport units are sized taking the scrollbars into account.
+  var vw = 0.01 * document.body.clientWidth;
+  var vh = 0.01 * document.body.clientHeight;
+  var vmin = Math.min(vw, vh);
+  var vmax = Math.max(vw, vh);
+  document.getElementById('a').style.width = (50 * vw) + "px";
+  document.getElementById('b').style.height = (25 * vh) + "px";
+  document.getElementById('c').style.width = (35 * vmin) + "px";
+  document.getElementById('d').style.height = (25 * vmax) + "px";
+</script>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-ref.html b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-ref.html
new file mode 100644
index 0000000000..f63a89c9b2
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-ref.html
@@ -0,0 +1,14 @@
+<style>
+  body { background-color: black }
+  iframe {
+    width: 100px;
+    height: 200px;
+    margin: 0px;
+    border: 0px;
+  }
+</style>
+
+<body>
+  <iframe src="unit-vh-vw-overflow-scroll-ref-iframe.html"></iframe>
+  <iframe src="unit-vh-vw-overflow-scroll-ref-iframe.html"></iframe>
+</body>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-x-iframe.html b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-x-iframe.html
new file mode 100644
index 0000000000..10c9ff32ec
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-x-iframe.html
@@ -0,0 +1,18 @@
+<style>
+  body { overflow-x: scroll }
+  div {
+    width: 10px;
+    height: 10px;
+    background-color: #d64203;
+  }
+</style>
+
+<body>
+  <div style="width: 50vw"></div>
+  <div style="height: 25vh"></div>
+  <div style="width: 35vmin"></div>
+  <div style="height: 25vmax"></div>
+
+  <!-- Deliberately make scrollbars appear. -->
+  <div style="width: 500px; height: 500px; background-color: black">
+</body>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-x-ref-iframe.html b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-x-ref-iframe.html
new file mode 100644
index 0000000000..a8430fd545
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-x-ref-iframe.html
@@ -0,0 +1,28 @@
+<style>
+  body { overflow-x: scroll }
+  div {
+    width: 10px;
+    height: 10px;
+    background-color: #d64203;
+  }
+</style>
+
+<body>
+  <div style="width: 50px"></div> <!-- Unaffected by scrollbars. -->
+  <div id="b"></div>
+  <div style="width: 35px"></div> <!-- Unaffected by scrollbars. -->
+  <div id="d"></div>
+
+  <!-- Deliberately make scrollbars appear. -->
+  <div style="width: 500px; height: 500px; background-color: black">
+</body>
+
+<script>
+  // client{Width, Height} consist of the area _inside_ the scrollbars, so these
+  // manually calculated units reflect the fact that with 'overflow: scroll' set,
+  // viewport units are sized taking the scrollbars into account. Since we're
+  // only dealing with 'overflow-x' here, only the height units are affected.
+  var vh = 0.01 * document.body.clientHeight;
+  document.getElementById('b').style.height = (25 * vh) + "px";
+  document.getElementById('d').style.height = (25 * vh) + "px";
+</script>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-x-ref.html b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-x-ref.html
new file mode 100644
index 0000000000..278ff74ed0
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-x-ref.html
@@ -0,0 +1,14 @@
+<style>
+  body { background-color: black }
+  iframe {
+    width: 100px;
+    height: 200px;
+    margin: 0px;
+    border: 0px;
+  }
+</style>
+
+<body>
+  <iframe src="unit-vh-vw-overflow-scroll-x-ref-iframe.html"></iframe>
+  <iframe src="unit-vh-vw-overflow-scroll-x-ref-iframe.html"></iframe>
+</body>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-x.html b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-x.html
new file mode 100644
index 0000000000..cde11499e9
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-x.html
@@ -0,0 +1,14 @@
+<style>
+  body { background-color: black }
+  iframe {
+    width: 100px;
+    height: 200px;
+    margin: 0px;
+    border: 0px;
+  }
+</style>
+
+<body>
+  <iframe src="unit-vh-vw-overflow-scroll-x-iframe.html"></iframe>
+  <iframe src="unit-vh-vw-overflow-scroll-x-iframe.html"></iframe>
+</body>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-y-iframe.html b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-y-iframe.html
new file mode 100644
index 0000000000..e6d0fb863a
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-y-iframe.html
@@ -0,0 +1,18 @@
+<style>
+  body { overflow-y: scroll }
+  div {
+    width: 10px;
+    height: 10px;
+    background-color: #d64203;
+  }
+</style>
+
+<body>
+  <div style="width: 50vw"></div>
+  <div style="height: 25vh"></div>
+  <div style="width: 35vmin"></div>
+  <div style="height: 25vmax"></div>
+
+  <!-- Deliberately make scrollbars appear. -->
+  <div style="width: 500px; height: 500px; background-color: black">
+</body>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-y-ref-iframe.html b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-y-ref-iframe.html
new file mode 100644
index 0000000000..7243ccbf7e
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-y-ref-iframe.html
@@ -0,0 +1,28 @@
+<style>
+  body { overflow-y: scroll }
+  div {
+    width: 10px;
+    height: 10px;
+    background-color: #d64203;
+  }
+</style>
+
+<body>
+  <div id="a"></div>
+  <div style="height: 50px"></div> <!-- Unaffected by scrollbars. -->
+  <div id="c"></div>
+  <div style="height: 50px"></div> <!-- Unaffected by scrollbars. -->
+
+  <!-- Deliberately make scrollbars appear. -->
+  <div style="width: 500px; height: 500px; background-color: black">
+</body>
+
+<script>
+  // client{Width, Height} consist of the area _inside_ the scrollbars, so these
+  // manually calculated units reflect the fact that with 'overflow: scroll' set,
+  // viewport units are sized taking the scrollbars into account. Since we're
+  // only dealing with 'overflow-y' here, only the width units are affected.
+  var vw = 0.01 * document.body.clientWidth;
+  document.getElementById('a').style.width = (50 * vw) + "px";
+  document.getElementById('c').style.width = (35 * vw) + "px";
+</script>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-y-ref.html b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-y-ref.html
new file mode 100644
index 0000000000..06f0f142c0
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-y-ref.html
@@ -0,0 +1,14 @@
+<style>
+  body { background-color: black }
+  iframe {
+    width: 100px;
+    height: 200px;
+    margin: 0px;
+    border: 0px;
+  }
+</style>
+
+<body>
+  <iframe src="unit-vh-vw-overflow-scroll-y-ref-iframe.html"></iframe>
+  <iframe src="unit-vh-vw-overflow-scroll-y-ref-iframe.html"></iframe>
+</body>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-y.html b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-y.html
new file mode 100644
index 0000000000..a181551346
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll-y.html
@@ -0,0 +1,14 @@
+<style>
+  body { background-color: black }
+  iframe {
+    width: 100px;
+    height: 200px;
+    margin: 0px;
+    border: 0px;
+  }
+</style>
+
+<body>
+  <iframe src="unit-vh-vw-overflow-scroll-y-iframe.html"></iframe>
+  <iframe src="unit-vh-vw-overflow-scroll-y-iframe.html"></iframe>
+</body>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll.html b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll.html
new file mode 100644
index 0000000000..11696a0389
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-overflow-scroll.html
@@ -0,0 +1,14 @@
+<style>
+  body { background-color: black }
+  iframe {
+    width: 100px;
+    height: 200px;
+    margin: 0px;
+    border: 0px;
+  }
+</style>
+
+<body>
+  <iframe src="unit-vh-vw-overflow-scroll-iframe.html"></iframe>
+  <iframe src="unit-vh-vw-overflow-scroll-iframe.html"></iframe>
+</body>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-ref-iframe.html b/layout/reftests/css-valuesandunits/unit-vh-vw-ref-iframe.html
new file mode 100644
index 0000000000..3694b3f701
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-ref-iframe.html
@@ -0,0 +1,14 @@
+<style>
+  div {
+    width: 10px;
+    height: 10px;
+    background-color: #d64203;
+  }
+</style>
+
+<body>
+  <div style="width: 50px"></div>
+  <div style="height: 50px"></div>
+  <div style="width: 35px"></div>
+  <div style="height: 50px"></div>
+</body>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-ref.html b/layout/reftests/css-valuesandunits/unit-vh-vw-ref.html
new file mode 100644
index 0000000000..5dc30fd0e4
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-ref.html
@@ -0,0 +1,14 @@
+<style>
+  body { background-color: black }
+  iframe {
+    width: 100px;
+    height: 200px;
+    margin: 0px;
+    border: 0px;
+  }
+</style>
+
+<body>
+  <iframe src="unit-vh-vw-ref-iframe.html"></iframe>
+  <iframe src="unit-vh-vw-ref-iframe.html"></iframe>
+</body>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-zoom-ref.html b/layout/reftests/css-valuesandunits/unit-vh-vw-zoom-ref.html
new file mode 100644
index 0000000000..c477c326c3
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-zoom-ref.html
@@ -0,0 +1,18 @@
+<html reftest-zoom="2">
+
+<style>
+  body { background-color: black }
+  iframe {
+    width: 100px;
+    height: 200px;
+    margin: 0px;
+    border: 0px;
+  }
+</style>
+
+<body>
+  <iframe src="unit-vh-vw-ref-iframe.html"></iframe>
+  <iframe src="unit-vh-vw-ref-iframe.html"></iframe>
+</body>
+
+</html>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw-zoom.html b/layout/reftests/css-valuesandunits/unit-vh-vw-zoom.html
new file mode 100644
index 0000000000..3272721ae2
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw-zoom.html
@@ -0,0 +1,18 @@
+<html reftest-zoom="2">
+
+<style>
+  body { background-color: black }
+  iframe {
+    width: 100px;
+    height: 200px;
+    margin: 0px;
+    border: 0px;
+  }
+</style>
+
+<body>
+  <iframe src="unit-vh-vw-iframe.html"></iframe>
+  <iframe src="unit-vh-vw-iframe.html"></iframe>
+</body>
+
+</html>
diff --git a/layout/reftests/css-valuesandunits/unit-vh-vw.html b/layout/reftests/css-valuesandunits/unit-vh-vw.html
new file mode 100644
index 0000000000..59aea944c0
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-vh-vw.html
@@ -0,0 +1,14 @@
+<style>
+  body { background-color: black }
+  iframe {
+    width: 100px;
+    height: 200px;
+    margin: 0px;
+    border: 0px;
+  }
+</style>
+
+<body>
+  <iframe src="unit-vh-vw-iframe.html"></iframe>
+  <iframe src="unit-vh-vw-iframe.html"></iframe>
+</body>
-- 
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