[Webkit-unassigned] [Bug 201330] On the first compositing update, "drawsContent" can be wrong

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=201330

Simon Fraser (smfr) <simon.fraser at apple.com> changed:

           What    |Removed                     |Added
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                 CC|                            |simon.fraser at apple.com

--- Comment #1 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
I need to tease apart "requires own backing store" from "paints into ancestor". RenderLayerBacking::paintsContent() currently checks isPaintDestinationForDescendantLayers(), which walks descendants without their own backing store.

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