RESOLVED DUPLICATE of bug 102256102178
Painting into compositing layers should not set the painting root 
https://bugs.webkit.org/show_bug.cgi?id=102178
Summary Painting into compositing layers should not set the painting root
Simon Fraser (smfr)
Reported 2012-11-13 22:24:09 PST
RenderLayerBacking::paintIntoLayer() passes the renderer down into the RenderLayer painting code as the paintingRoot. This is a waste of cycles; the paintingRoot is only used in wacky cases where you just want to snapshot some subtree. We can just leave it null, and avoid a isDescendantOf() call in RenderLayer (which is a tree walk).
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Simon Fraser (smfr)
Comment 1 2012-11-14 11:49:16 PST
*** This bug has been marked as a duplicate of bug 102256 ***
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