mozilla-central: changeset 266861:199dffbb3503ccd73e0783e256bf9c2bb9f2dae5

author	Alexander Surkov <surkov.alexander@gmail.com>
	Thu, 08 Oct 2015 08:02:52 -0400
changeset 266861	199dffbb3503ccd73e0783e256bf9c2bb9f2dae5
parent 266860	b641ebf97eec93ffc1eaeaa88e6c71760621d3ea
child 266862	0b75225d75f73cd6a7f0b7e9afc8646f09a6432b
push id	29499
push user	kwierso@gmail.com
push date	Thu, 08 Oct 2015 21:29:10 +0000
treeherder	mozilla-central@46da59584acb [default view] [failures only]
perfherder	[talos] [build metrics] [platform microbench] (compared to previous push)
reviewers	marcoz
bugs	1212457
milestone	44.0a1
first release with	nightly linux32 d01dd42e654b / 44.0a1 / 20151009030230 / files nightly linux64 d01dd42e654b / 44.0a1 / 20151009030230 / files nightly mac d01dd42e654b / 44.0a1 / 20151009030230 / files nightly win32 d01dd42e654b / 44.0a1 / 20151009030230 / files nightly win64 d01dd42e654b / 44.0a1 / 20151009030230 / files
last release without	nightly linux32 d1c5a7c5b433 / 44.0a1 / 20151007030205 / files nightly linux64 d1c5a7c5b433 / 44.0a1 / 20151007030205 / files nightly mac d1c5a7c5b433 / 44.0a1 / 20151007030205 / files nightly win32 d1c5a7c5b433 / 44.0a1 / 20151007030205 / files nightly win64 d1c5a7c5b433 / 44.0a1 / 20151007030205 / files

--- a/accessible/generic/ARIAGridAccessible.cpp
+++ b/accessible/generic/ARIAGridAccessible.cpp
@@ -542,18 +542,19 @@ ARIARowAccessible::
 }
 
 NS_IMPL_ISUPPORTS_INHERITED0(ARIARowAccessible, Accessible)
 
 GroupPos
 ARIARowAccessible::GroupPosition()
 {
   int32_t count = 0, index = 0;
-  if (nsCoreUtils::GetUIntAttr(nsAccUtils::TableFor(this)->GetContent(),
-                               nsGkAtoms::aria_rowcount, &count) &&
+  Accessible* table = nsAccUtils::TableFor(this);
+  if (table && nsCoreUtils::GetUIntAttr(table->GetContent(),
+                                        nsGkAtoms::aria_rowcount, &count) &&
       nsCoreUtils::GetUIntAttr(mContent, nsGkAtoms::aria_rowindex, &index)) {
     return GroupPos(0, index, count);
   }
 
   return AccessibleWrap::GroupPosition();
 }