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haikuwebkit/LayoutTests/accessibility/crash-when-renderers-are-ad...

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Renderers being destroyed should not be added to AX's deferred list. https://bugs.webkit.org/show_bug.cgi?id=171768 <rdar://problem/31955660> Reviewed by Simon Fraser. Source/WebCore: In certain cases, when custom scrollbars are present, while destroying the scrollbars' block parent, we - first remove the block from the AX's deferred list (AXObjectCache::remove) - destroy the render layer that owns the custom scrollbars (RenderLayer::destroyLayer) - detach the scrollbars from the parent (block) (RenderObject::removeFromParent) - clean up the block's lines (RenderBlock::deleteLines) - push the block back to the AX's deferred list (AXObjectCache::recomputeDeferredIsIgnored) At this point no one will remove the current block from AX's deferred list. Test: accessibility/crash-when-renderers-are-added-back-to-deferred-list.html * accessibility/AXObjectCache.cpp: (WebCore::AXObjectCache::recomputeDeferredIsIgnored): (WebCore::AXObjectCache::deferTextChanged): LayoutTests: * accessibility/crash-when-renderers-are-added-back-to-deferred-list-expected.txt: Added. * accessibility/crash-when-renderers-are-added-back-to-deferred-list.html: Added. Canonical link: https://commits.webkit.org/188678@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@216307 268f45cc-cd09-0410-ab3c-d52691b4dbfc
2017-05-06 04:41:32 +00:00
PASS if no crash or assert.