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Bug 822086 - Handle a nullptr ContainerLayer in nsDisplayTransform::BuildLayer. r=bustage CLOSED TREE
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@ -4019,6 +4019,10 @@ already_AddRefed<Layer> nsDisplayTransform::BuildLayer(nsDisplayListBuilder *aBu
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BuildContainerLayerFor(aBuilder, aManager, mFrame, this, *mStoredList.GetChildren(),
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aContainerParameters, &newTransformMatrix);
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if (!container) {
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return nullptr;
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}
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// Add the preserve-3d flag for this layer, BuildContainerLayerFor clears all flags,
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// so we never need to explicitely unset this flag.
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if (mFrame->Preserves3D() || mFrame->Preserves3DChildren()) {
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