102178 2012-11-13 22:24:09 -0800 Painting into compositing layers should not set the painting root 2012-11-14 11:49:16 -0800 1 1 1 Unclassified WebKit Layout and Rendering 528+ (Nightly build) Unspecified Unspecified RESOLVED DUPLICATE 102256 P2 Normal --- 1 simon.fraser simon.fraser bdakin simon.fraser oldest_to_newest 766441 0 simon.fraser 2012-11-13 22:24:09 -0800 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). 767141 1 simon.fraser 2012-11-14 11:49:16 -0800 *** This bug has been marked as a duplicate of bug 102256 ***