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Bug 822086 - Handle a nullptr ContainerLayer in nsDisplayTransform::BuildLayer. r=bustage CLOSED TREE

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This commit is contained in:
Matt Woodrow 2013-03-21 16:27:02 +13:00
parent 0b39e48388
commit 66180dc4c1
1 changed files with 4 additions and 0 deletions
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4
layout/base/nsDisplayList.cpp
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@ -4019,6 +4019,10 @@ already_AddRefed<Layer> nsDisplayTransform::BuildLayer(nsDisplayListBuilder *aBu
BuildContainerLayerFor(aBuilder, aManager, mFrame, this, *mStoredList.GetChildren(), BuildContainerLayerFor(aBuilder, aManager, mFrame, this, *mStoredList.GetChildren(),
aContainerParameters, &newTransformMatrix); aContainerParameters, &newTransformMatrix);
if (!container) {
return nullptr;
}
// Add the preserve-3d flag for this layer, BuildContainerLayerFor clears all flags, // Add the preserve-3d flag for this layer, BuildContainerLayerFor clears all flags,
// so we never need to explicitely unset this flag. // so we never need to explicitely unset this flag.
if (mFrame->Preserves3D() || mFrame->Preserves3DChildren()) { if (mFrame->Preserves3D() || mFrame->Preserves3DChildren()) {