RESOLVED FIXED Bug 119551
Every scroll causes additional layer tree work because of flatteningLayer->removeFromParent(); 
https://bugs.webkit.org/show_bug.cgi?id=119551
Summary Every scroll causes additional layer tree work because of flatteningLayer->re...
Simon Fraser (smfr)
Reported 2013-08-07 10:43:48 PDT
Whenever we update layer geometry on a layer with a tile cache flattening layer, we hit: if (GraphicsLayer* flatteningLayer = tileCacheFlatteningLayer()) { flatteningLayer->removeFromParent(); m_graphicsLayer->addChild(flatteningLayer); } which is normally a no-op, but does cause us to push a new sublayers array down to CA. We should avoid this.
Attachments
Patch (1.82 KB, patch)
2013-08-13 13:07 PDT, Simon Fraser (smfr) 		dino: review+
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Simon Fraser (smfr)
Comment 1 2013-08-13 13:07:22 PDT
Created attachment 208668 [details] Patch
Simon Fraser (smfr)
Comment 2 2013-08-13 13:17:27 PDT
https://trac.webkit.org/r154018
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