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Bug 1176683 - crash in mozilla::a11y::HyperTextAccessible::LandmarkRole() const, r=marcoz

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This commit is contained in:
Alexander Surkov 2015-06-24 15:48:29 -07:00
parent 25ca96057d
commit e5ec2a0a6a
1 changed files with 3 additions and 0 deletions
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3
accessible/generic/HyperTextAccessible.cpp
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@ -985,6 +985,9 @@ HyperTextAccessible::NativeAttributes()
nsIAtom* nsIAtom*
HyperTextAccessible::LandmarkRole() const HyperTextAccessible::LandmarkRole() const
{ {
if (!HasOwnContent())
return nullptr;
// For the html landmark elements we expose them like we do ARIA landmarks to // For the html landmark elements we expose them like we do ARIA landmarks to
// make AT navigation schemes "just work". // make AT navigation schemes "just work".
if (mContent->IsHTMLElement(nsGkAtoms::nav)) { if (mContent->IsHTMLElement(nsGkAtoms::nav)) {