haikuwebkit/LayoutTests/css3/masking/clip-path-reference-restore...

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<div style="width: 100px; height: 100px; background-color: green;"></div>
SVG clip-path references can clip out later content https://bugs.webkit.org/show_bug.cgi?id=164181 Reviewed by Said Abou-Hallawa. Source/WebCore: RenderSVGResourceClipper can modify the GraphicsContext state (through the path-only clipping codepath) so we need to ensure RenderLayer::setupClipPath saves the context and its caller restores it back so later content is not clipped as well. This patch is based on a chromium patch by fs@opera.com: https://chromium.googlesource.com/chromium/src/+/b3f7e7d2c4afb3c7e5c7eb438ff5933cbe2109b3 Test: css3/masking/clip-path-reference-restore.html * rendering/RenderLayer.cpp: (WebCore::RenderLayer::setupClipPath): Add a GC save and return true to restore. Also switch to downcast instead of static_cast. LayoutTests: Make sure applying multiple clip-path references does not clip out later content. * css3/masking/clip-path-reference-restore-expected.html: Added. * css3/masking/clip-path-reference-restore.html: Added. Canonical link: https://commits.webkit.org/185143@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@212038 268f45cc-cd09-0410-ab3c-d52691b4dbfc 2017-02-10 03:27:40 +00:00			`<!DOCTYPE html>`
			`<div style="width: 100px; height: 100px; background-color: green;"></div>`