[Webkit-unassigned] [Bug 79139] CCLayerTreeHostImpl calls didDraw more frequently than willDraw

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=79139





--- Comment #2 from Adrienne Walker <enne at google.com>  2012-02-21 14:09:48 PST ---
(From update of attachment 128024)
View in context: https://bugs.webkit.org/attachment.cgi?id=128024&action=review

Can you add a unit test for a layer with an empty visibleLayerRect to make sure there's no mismatch between didDraw/willDraw?

> Source/WebCore/platform/graphics/chromium/cc/CCLayerTreeHostImpl.cpp:281
> +            && !CCLayerTreeHostCommon::renderSurfaceContributesToTarget(*it, it.targetRenderSurfaceLayer()->id()))

I think this conditional is redundant with it.representsItself().

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