From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 19:32:43 +0200
Subject: Adding upstream version 1:115.7.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../vector/empty/intrinsic-ratio-no-dimensions.svg | 10 +++++++
 .../vector/empty/intrinsic-ratio-zero-height.svg   | 11 +++++++
 .../vector/empty/intrinsic-ratio-zero-width.svg    | 11 +++++++
 ...ercent-width-omitted-height-extreme-viewbox.svg | 11 +++++++
 ...ted-width-nonpercent-height-extreme-viewbox.svg | 11 +++++++
 .../backgrounds/vector/empty/ref-tall-empty.html   | 24 +++++++++++++++
 .../backgrounds/vector/empty/ref-tall-lime.html    | 28 +++++++++++++++++
 .../backgrounds/vector/empty/ref-wide-empty.html   | 21 +++++++++++++
 .../backgrounds/vector/empty/ref-wide-lime.html    | 28 +++++++++++++++++
 .../reftests/backgrounds/vector/empty/reftest.list | 26 ++++++++++++++++
 .../vector/empty/tall--contain--height.html        | 35 ++++++++++++++++++++++
 .../vector/empty/tall--contain--width.html         | 35 ++++++++++++++++++++++
 .../vector/empty/tall--cover--height.html          | 35 ++++++++++++++++++++++
 .../vector/empty/tall--cover--width.html           | 35 ++++++++++++++++++++++
 .../vector/empty/wide--contain--height.html        | 35 ++++++++++++++++++++++
 .../vector/empty/wide--contain--width.html         | 35 ++++++++++++++++++++++
 .../vector/empty/wide--cover--height.html          | 35 ++++++++++++++++++++++
 .../vector/empty/wide--cover--width.html           | 35 ++++++++++++++++++++++
 .../vector/empty/zero-height-ratio-5px-auto.html   | 34 +++++++++++++++++++++
 .../vector/empty/zero-height-ratio-auto-5px.html   | 34 +++++++++++++++++++++
 .../vector/empty/zero-height-ratio-auto-auto.html  | 34 +++++++++++++++++++++
 .../vector/empty/zero-height-ratio-contain.html    | 34 +++++++++++++++++++++
 .../vector/empty/zero-height-ratio-cover.html      | 34 +++++++++++++++++++++
 .../empty/zero-ratio-no-dimensions-5px-auto.html   | 34 +++++++++++++++++++++
 .../empty/zero-ratio-no-dimensions-auto-5px.html   | 34 +++++++++++++++++++++
 .../empty/zero-ratio-no-dimensions-auto-auto.html  | 34 +++++++++++++++++++++
 .../empty/zero-ratio-no-dimensions-contain.html    | 34 +++++++++++++++++++++
 .../empty/zero-ratio-no-dimensions-cover.html      | 34 +++++++++++++++++++++
 .../vector/empty/zero-width-ratio-5px-auto.html    | 34 +++++++++++++++++++++
 .../vector/empty/zero-width-ratio-auto-5px.html    | 34 +++++++++++++++++++++
 .../vector/empty/zero-width-ratio-auto-auto.html   | 34 +++++++++++++++++++++
 .../vector/empty/zero-width-ratio-contain.html     | 34 +++++++++++++++++++++
 .../vector/empty/zero-width-ratio-cover.html       | 34 +++++++++++++++++++++
 33 files changed, 971 insertions(+)
 create mode 100644 layout/reftests/backgrounds/vector/empty/intrinsic-ratio-no-dimensions.svg
 create mode 100644 layout/reftests/backgrounds/vector/empty/intrinsic-ratio-zero-height.svg
 create mode 100644 layout/reftests/backgrounds/vector/empty/intrinsic-ratio-zero-width.svg
 create mode 100644 layout/reftests/backgrounds/vector/empty/nonpercent-width-omitted-height-extreme-viewbox.svg
 create mode 100644 layout/reftests/backgrounds/vector/empty/omitted-width-nonpercent-height-extreme-viewbox.svg
 create mode 100644 layout/reftests/backgrounds/vector/empty/ref-tall-empty.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/ref-tall-lime.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/ref-wide-empty.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/ref-wide-lime.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/reftest.list
 create mode 100644 layout/reftests/backgrounds/vector/empty/tall--contain--height.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/tall--contain--width.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/tall--cover--height.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/tall--cover--width.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/wide--contain--height.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/wide--contain--width.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/wide--cover--height.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/wide--cover--width.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/zero-height-ratio-5px-auto.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/zero-height-ratio-auto-5px.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/zero-height-ratio-auto-auto.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/zero-height-ratio-contain.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/zero-height-ratio-cover.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-5px-auto.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-auto-5px.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-auto-auto.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-contain.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-cover.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/zero-width-ratio-5px-auto.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/zero-width-ratio-auto-5px.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/zero-width-ratio-auto-auto.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/zero-width-ratio-contain.html
 create mode 100644 layout/reftests/backgrounds/vector/empty/zero-width-ratio-cover.html

(limited to 'layout/reftests/backgrounds/vector/empty')

diff --git a/layout/reftests/backgrounds/vector/empty/intrinsic-ratio-no-dimensions.svg b/layout/reftests/backgrounds/vector/empty/intrinsic-ratio-no-dimensions.svg
new file mode 100644
index 0000000000..e116d8f1f7
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/intrinsic-ratio-no-dimensions.svg
@@ -0,0 +1,10 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<svg xmlns="http://www.w3.org/2000/svg"
+     viewBox="0 0 8 0"
+     preserveAspectRatio="none">
+  <title>Image with zero-width ratio, no dimensions</title>
+  <rect y="0" width="100%" height="100%" fill="lime"/>
+</svg>
diff --git a/layout/reftests/backgrounds/vector/empty/intrinsic-ratio-zero-height.svg b/layout/reftests/backgrounds/vector/empty/intrinsic-ratio-zero-height.svg
new file mode 100644
index 0000000000..e691e3f918
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/intrinsic-ratio-zero-height.svg
@@ -0,0 +1,11 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<svg xmlns="http://www.w3.org/2000/svg"
+     width="8px"
+     viewBox="0 0 8 0"
+     preserveAspectRatio="none">
+  <title>Image with zero-height ratio, width</title>
+  <rect y="0" width="100%" height="100%" fill="lime"/>
+</svg>
diff --git a/layout/reftests/backgrounds/vector/empty/intrinsic-ratio-zero-width.svg b/layout/reftests/backgrounds/vector/empty/intrinsic-ratio-zero-width.svg
new file mode 100644
index 0000000000..df36531671
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/intrinsic-ratio-zero-width.svg
@@ -0,0 +1,11 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<svg xmlns="http://www.w3.org/2000/svg"
+     width="8px"
+     viewBox="0 0 0 8"
+     preserveAspectRatio="none">
+  <title>Image with zero-width ratio, width</title>
+  <rect y="0" width="100%" height="100%" fill="lime"/>
+</svg>
diff --git a/layout/reftests/backgrounds/vector/empty/nonpercent-width-omitted-height-extreme-viewbox.svg b/layout/reftests/backgrounds/vector/empty/nonpercent-width-omitted-height-extreme-viewbox.svg
new file mode 100644
index 0000000000..052ed2ab39
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/nonpercent-width-omitted-height-extreme-viewbox.svg
@@ -0,0 +1,11 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<svg xmlns="http://www.w3.org/2000/svg"
+     width="8px"
+     viewBox="0 0 2147483647 1"
+     preserveAspectRatio="none">
+  <title>Image with non-percent width, omitted height, extreme viewbox</title>
+  <rect y="0" width="100%" height="100%" fill="lime"/>
+</svg>
diff --git a/layout/reftests/backgrounds/vector/empty/omitted-width-nonpercent-height-extreme-viewbox.svg b/layout/reftests/backgrounds/vector/empty/omitted-width-nonpercent-height-extreme-viewbox.svg
new file mode 100644
index 0000000000..9e9b0b431a
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/omitted-width-nonpercent-height-extreme-viewbox.svg
@@ -0,0 +1,11 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<svg xmlns="http://www.w3.org/2000/svg"
+     height="8px"
+     viewBox="0 0 1 2147483647"
+     preserveAspectRatio="none">
+  <title>Image with omitted width, non-percent height, extreme viewbox</title>
+  <rect y="0" width="100%" height="100%" fill="lime"/>
+</svg>
diff --git a/layout/reftests/backgrounds/vector/empty/ref-tall-empty.html b/layout/reftests/backgrounds/vector/empty/ref-tall-empty.html
new file mode 100644
index 0000000000..37e411f081
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/ref-tall-empty.html
@@ -0,0 +1,24 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>tall reference, empty</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+  </style>
+</head>
+<body>
+<div id="outer"></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/ref-tall-lime.html b/layout/reftests/backgrounds/vector/empty/ref-tall-lime.html
new file mode 100644
index 0000000000..d0f18bfcfc
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/ref-tall-lime.html
@@ -0,0 +1,28 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>tall reference, lime fill</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background: lime;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/ref-wide-empty.html b/layout/reftests/backgrounds/vector/empty/ref-wide-empty.html
new file mode 100644
index 0000000000..16ad533156
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/ref-wide-empty.html
@@ -0,0 +1,21 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>wide reference, empty</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <style type="text/css">
+div
+{
+  width: 768px; height: 256px;
+  border: 1px solid black;
+}
+  </style>
+</head>
+<body>
+<div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/ref-wide-lime.html b/layout/reftests/backgrounds/vector/empty/ref-wide-lime.html
new file mode 100644
index 0000000000..7ae51768a8
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/ref-wide-lime.html
@@ -0,0 +1,28 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>wide reference, empty</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <style type="text/css">
+div
+{
+  width: 768px; height: 256px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background: lime;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/reftest.list b/layout/reftests/backgrounds/vector/empty/reftest.list
new file mode 100644
index 0000000000..d83e5c1da6
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/reftest.list
@@ -0,0 +1,26 @@
+== tall--contain--height.html ref-tall-empty.html
+== tall--contain--width.html ref-tall-empty.html
+== wide--contain--height.html ref-wide-empty.html
+== wide--contain--width.html ref-wide-empty.html
+
+# These tests fail because of integer overflow; see bug 894555.
+fails == tall--cover--height.html ref-tall-lime.html
+fails == tall--cover--width.html ref-tall-lime.html
+fails == wide--cover--height.html ref-wide-lime.html
+fails == wide--cover--width.html ref-wide-lime.html
+
+== zero-height-ratio-contain.html ref-tall-empty.html
+== zero-height-ratio-cover.html ref-tall-empty.html
+== zero-height-ratio-auto-auto.html ref-tall-empty.html
+== zero-height-ratio-auto-5px.html ref-tall-empty.html
+== zero-height-ratio-5px-auto.html ref-tall-empty.html
+== zero-width-ratio-contain.html ref-tall-empty.html
+== zero-width-ratio-cover.html ref-tall-empty.html
+== zero-width-ratio-auto-auto.html ref-tall-empty.html
+== zero-width-ratio-auto-5px.html ref-tall-empty.html
+== zero-width-ratio-5px-auto.html ref-tall-empty.html
+== zero-ratio-no-dimensions-contain.html ref-tall-empty.html
+== zero-ratio-no-dimensions-cover.html ref-tall-empty.html
+== zero-ratio-no-dimensions-auto-5px.html ref-tall-empty.html
+== zero-ratio-no-dimensions-5px-auto.html ref-tall-empty.html
+== zero-ratio-no-dimensions-auto-auto.html ref-tall-empty.html
diff --git a/layout/reftests/backgrounds/vector/empty/tall--contain--height.html b/layout/reftests/backgrounds/vector/empty/tall--contain--height.html
new file mode 100644
index 0000000000..8c0d38a301
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/tall--contain--height.html
@@ -0,0 +1,35 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>tall background-size: contain; for nonpercent-width-omitted-height-extreme-viewbox.svg</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(nonpercent-width-omitted-height-extreme-viewbox.svg);
+  background-repeat: no-repeat;
+  background-size: contain;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/tall--contain--width.html b/layout/reftests/backgrounds/vector/empty/tall--contain--width.html
new file mode 100644
index 0000000000..2fe4ac8d83
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/tall--contain--width.html
@@ -0,0 +1,35 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>tall background-size: contain; for omitted-width-nonpercent-height-extreme-viewbox.svg</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(omitted-width-nonpercent-height-extreme-viewbox.svg);
+  background-repeat: no-repeat;
+  background-size: contain;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/tall--cover--height.html b/layout/reftests/backgrounds/vector/empty/tall--cover--height.html
new file mode 100644
index 0000000000..be40ed2e8c
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/tall--cover--height.html
@@ -0,0 +1,35 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>tall background-size: cover; for nonpercent-width-omitted-height-extreme-viewbox.svg</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(nonpercent-width-omitted-height-extreme-viewbox.svg);
+  background-repeat: no-repeat;
+  background-size: cover;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/tall--cover--width.html b/layout/reftests/backgrounds/vector/empty/tall--cover--width.html
new file mode 100644
index 0000000000..e4fea72c9b
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/tall--cover--width.html
@@ -0,0 +1,35 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>tall background-size: cover; for omitted-width-nonpercent-height-extreme-viewbox.svg</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(omitted-width-nonpercent-height-extreme-viewbox.svg);
+  background-repeat: no-repeat;
+  background-size: cover;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/wide--contain--height.html b/layout/reftests/backgrounds/vector/empty/wide--contain--height.html
new file mode 100644
index 0000000000..e81082f106
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/wide--contain--height.html
@@ -0,0 +1,35 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>wide background-size: contain; for nonpercent-width-omitted-height-extreme-viewbox.svg</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 768px; height: 256px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(nonpercent-width-omitted-height-extreme-viewbox.svg);
+  background-repeat: no-repeat;
+  background-size: contain;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/wide--contain--width.html b/layout/reftests/backgrounds/vector/empty/wide--contain--width.html
new file mode 100644
index 0000000000..2b88a018c9
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/wide--contain--width.html
@@ -0,0 +1,35 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>wide background-size: contain; for omitted-width-nonpercent-height-extreme-viewbox.svg</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 768px; height: 256px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(omitted-width-nonpercent-height-extreme-viewbox.svg);
+  background-repeat: no-repeat;
+  background-size: contain;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/wide--cover--height.html b/layout/reftests/backgrounds/vector/empty/wide--cover--height.html
new file mode 100644
index 0000000000..7b6c323e41
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/wide--cover--height.html
@@ -0,0 +1,35 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>wide background-size: cover; for nonpercent-width-omitted-height-extreme-viewbox.svg</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 768px; height: 256px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(nonpercent-width-omitted-height-extreme-viewbox.svg);
+  background-repeat: no-repeat;
+  background-size: cover;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/wide--cover--width.html b/layout/reftests/backgrounds/vector/empty/wide--cover--width.html
new file mode 100644
index 0000000000..beb516db31
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/wide--cover--width.html
@@ -0,0 +1,35 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>wide background-size: cover; for omitted-width-nonpercent-height-extreme-viewbox.svg</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 768px; height: 256px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(omitted-width-nonpercent-height-extreme-viewbox.svg);
+  background-repeat: no-repeat;
+  background-size: cover;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/zero-height-ratio-5px-auto.html b/layout/reftests/backgrounds/vector/empty/zero-height-ratio-5px-auto.html
new file mode 100644
index 0000000000..059a075fdc
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/zero-height-ratio-5px-auto.html
@@ -0,0 +1,34 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>zero height ratio, 5px auto</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(intrinsic-ratio-zero-height.svg);
+  background-repeat: no-repeat;
+  background-size: 5px auto;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/zero-height-ratio-auto-5px.html b/layout/reftests/backgrounds/vector/empty/zero-height-ratio-auto-5px.html
new file mode 100644
index 0000000000..99a0b070cd
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/zero-height-ratio-auto-5px.html
@@ -0,0 +1,34 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>zero height ratio, auto 5px</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(intrinsic-ratio-zero-height.svg);
+  background-repeat: no-repeat;
+  background-size: auto 5px;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/zero-height-ratio-auto-auto.html b/layout/reftests/backgrounds/vector/empty/zero-height-ratio-auto-auto.html
new file mode 100644
index 0000000000..82d34bfee0
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/zero-height-ratio-auto-auto.html
@@ -0,0 +1,34 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>zero height ratio, auto auto</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(intrinsic-ratio-zero-height.svg);
+  background-repeat: no-repeat;
+  background-size: auto auto;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/zero-height-ratio-contain.html b/layout/reftests/backgrounds/vector/empty/zero-height-ratio-contain.html
new file mode 100644
index 0000000000..caf6c57d6d
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/zero-height-ratio-contain.html
@@ -0,0 +1,34 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>zero height ratio, contain</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(intrinsic-ratio-zero-height.svg);
+  background-repeat: no-repeat;
+  background-size: contain;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/zero-height-ratio-cover.html b/layout/reftests/backgrounds/vector/empty/zero-height-ratio-cover.html
new file mode 100644
index 0000000000..a34dd61648
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/zero-height-ratio-cover.html
@@ -0,0 +1,34 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>zero height ratio, cover</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(intrinsic-ratio-zero-height.svg);
+  background-repeat: no-repeat;
+  background-size: cover;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-5px-auto.html b/layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-5px-auto.html
new file mode 100644
index 0000000000..2581e299b8
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-5px-auto.html
@@ -0,0 +1,34 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>zero ratio, no dimensions, 5px auto</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(intrinsic-ratio-no-dimensions.svg);
+  background-repeat: no-repeat;
+  background-size: 5px auto;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-auto-5px.html b/layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-auto-5px.html
new file mode 100644
index 0000000000..4198c9d06d
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-auto-5px.html
@@ -0,0 +1,34 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>zero ratio, no dimensions, auto 5px</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(intrinsic-ratio-no-dimensions.svg);
+  background-repeat: no-repeat;
+  background-size: auto 5px;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-auto-auto.html b/layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-auto-auto.html
new file mode 100644
index 0000000000..85c20fd1e3
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-auto-auto.html
@@ -0,0 +1,34 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>zero ratio, no dimensions, auto auto</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(intrinsic-ratio-no-dimensions.svg);
+  background-repeat: no-repeat;
+  background-size: auto auto;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-contain.html b/layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-contain.html
new file mode 100644
index 0000000000..fa62a25316
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-contain.html
@@ -0,0 +1,34 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>zero ratio, no dimensions, contain</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(intrinsic-ratio-no-dimensions.svg);
+  background-repeat: no-repeat;
+  background-size: contain;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-cover.html b/layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-cover.html
new file mode 100644
index 0000000000..771269e2cb
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/zero-ratio-no-dimensions-cover.html
@@ -0,0 +1,34 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>zero ratio, no dimensions, cover</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(intrinsic-ratio-no-dimensions.svg);
+  background-repeat: no-repeat;
+  background-size: cover;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/zero-width-ratio-5px-auto.html b/layout/reftests/backgrounds/vector/empty/zero-width-ratio-5px-auto.html
new file mode 100644
index 0000000000..675e75b396
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/zero-width-ratio-5px-auto.html
@@ -0,0 +1,34 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>zero height ratio, 5px auto</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(intrinsic-ratio-zero-width.svg);
+  background-repeat: no-repeat;
+  background-size: 5px auto;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/zero-width-ratio-auto-5px.html b/layout/reftests/backgrounds/vector/empty/zero-width-ratio-auto-5px.html
new file mode 100644
index 0000000000..c16d11df76
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/zero-width-ratio-auto-5px.html
@@ -0,0 +1,34 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>zero height ratio, auto 5px</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(intrinsic-ratio-zero-width.svg);
+  background-repeat: no-repeat;
+  background-size: auto 5px;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/zero-width-ratio-auto-auto.html b/layout/reftests/backgrounds/vector/empty/zero-width-ratio-auto-auto.html
new file mode 100644
index 0000000000..78a7327ab1
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/zero-width-ratio-auto-auto.html
@@ -0,0 +1,34 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>zero width ratio, auto auto</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(intrinsic-ratio-zero-width.svg);
+  background-repeat: no-repeat;
+  background-size: auto auto;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/zero-width-ratio-contain.html b/layout/reftests/backgrounds/vector/empty/zero-width-ratio-contain.html
new file mode 100644
index 0000000000..5604983772
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/zero-width-ratio-contain.html
@@ -0,0 +1,34 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>zero width ratio, contain</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(intrinsic-ratio-zero-width.svg);
+  background-repeat: no-repeat;
+  background-size: contain;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
diff --git a/layout/reftests/backgrounds/vector/empty/zero-width-ratio-cover.html b/layout/reftests/backgrounds/vector/empty/zero-width-ratio-cover.html
new file mode 100644
index 0000000000..a1e6c52f4d
--- /dev/null
+++ b/layout/reftests/backgrounds/vector/empty/zero-width-ratio-cover.html
@@ -0,0 +1,34 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <title>zero width ratio, cover</title>
+  <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" />
+  <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" />
+  <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" />
+  <meta name="flags" content="svg" />
+  <style type="text/css">
+div
+{
+  width: 256px; height: 768px;
+}
+#outer
+{
+  border: 1px solid black;
+}
+#inner
+{
+  background-image: url(intrinsic-ratio-zero-width.svg);
+  background-repeat: no-repeat;
+  background-size: cover;
+}
+  </style>
+</head>
+<body>
+<div id="outer"><div id="inner"></div></div>
+</body>
+</html>
-- 
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