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simon.fraser@apple.com authored
https://bugs.webkit.org/show_bug.cgi?id=79852 Reviewed by Dan Bernstein. Use the newly added WebKitSystemInterface method to limit the area being painted in a CALayer -drawInContext callback. This avoids redundant drawing, for performance. * platform/graphics/mac/WebLayer.mm: (drawLayerContents): git-svn-id: http://svn.webkit.org/repository/webkit/trunk@109186 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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