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haikuwebkit/LayoutTests/compositing/page-cache-back-crash-expec...

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REGRESSION(r209865): Crash when navigating back to some pages with compositing layers. <https://webkit.org/b/166469> <rdar://problem/29109053> Reviewed by Darin Adler. Source/WebCore: Remove the old WK1-era clear/restoreBackingStores optimization from the page cache. When enabling it on non-iOS platforms, we started hitting lots of assertions, and none of our memory tests showed any significant improvement anyway. Test: compositing/page-cache-back-crash.html * history/CachedFrame.cpp: (WebCore::CachedFrameBase::CachedFrameBase): (WebCore::CachedFrameBase::restore): (WebCore::CachedFrame::CachedFrame): * history/CachedFrame.h: * page/FrameView.cpp: (WebCore::FrameView::restoreBackingStores): Deleted. * page/FrameView.h: LayoutTests: Add a smoke test for the crashes we were seeing. Thanks to Zalán for the reduction. * compositing/page-cache-back-crash-expected.txt: Added. * compositing/page-cache-back-crash.html: Added. Canonical link: https://commits.webkit.org/183746@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@210142 268f45cc-cd09-0410-ab3c-d52691b4dbfc
2016-12-24 00:23:37 +00:00
- Test passes if it doesn't crash.