Bug 1218041, part 2: add reftests for <treecell> SVG-image rendering. (no review)

The tests are marked as random for now, per bug 1218954.

layout/reftests/xul/reftest.list

@@ -63,3 +63,11 @@ skip-if((B2G&&browserIsRemote)||Mulet) == object-fit-scale-down-svg-005.xul obje
 skip-if((B2G&&browserIsRemote)||Mulet) == object-fit-scale-down-svg-006.xul object-fit-scale-down-svg-006-ref.html
 skip-if((B2G&&browserIsRemote)||Mulet) == object-position-png-001.xul object-position-png-001-ref.html
 skip-if((B2G&&browserIsRemote)||Mulet) == object-position-png-002.xul object-position-png-002-ref.html
+
+# Tests for rendering SVG images in a XUL <treecell>:
+# XXXdholbert: These are marked as "random" right now, since they might not
+# render the images they trying to test in time for the reftest snapshot, per
+# bug 1218954. Once that bug is fixed, we should replace the "random"
+# annotation with "skip-if((B2G&&browserIsRemote)||Mulet)", like above tests.
+skip == treecell-image-svg-1a.xul treecell-image-svg-1-ref.xul # bug 1218954
+skip == treecell-image-svg-1b.xul treecell-image-svg-1-ref.xul # bug 1218954

layout/reftests/xul/treecell-image-svg-1-ref.xul

@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
+
+<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <tree seltype="single" flex="1">
+    <treecols>
+      <treecol flex="1"/>
+    </treecols>
+    <treechildren>
+      <treeitem>
+        <treerow>
+          <treecell src="colors-16x8.png"/>
+        </treerow>
+      </treeitem>
+    </treechildren>
+  </tree>
+</window>

layout/reftests/xul/treecell-image-svg-1a.xul

@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
+
+<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <tree seltype="single" flex="1">
+    <treecols>
+      <treecol flex="1"/>
+    </treecols>
+    <treechildren>
+      <treeitem>
+        <treerow>
+          <treecell src="colors-16x8.svg"/>
+        </treerow>
+      </treeitem>
+    </treechildren>
+  </tree>
+</window>

layout/reftests/xul/treecell-image-svg-1b.xul

@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
+
+<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <tree seltype="single" flex="1">
+    <treecols>
+      <treecol flex="1"/>
+    </treecols>
+    <treechildren>
+      <treeitem>
+        <treerow>
+          <treecell src="colors-16x8-noSize.svg"/>
+        </treerow>
+      </treeitem>
+    </treechildren>
+  </tree>
+</window>