[Webkit-unassigned] [Bug 111701] Basic child obscuration test for backgrounds

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=111701





--- Comment #11 from Simon Fraser (smfr) <simon.fraser at apple.com>  2013-03-08 12:05:32 PST ---
Yes, opacity creates layers, so should bail from the childBox->layer()->contentsOpaqueInRect() test, as should transforms, so you can remove the transform check (sorry).

Note that RenderLayer::contentsOpaqueInRect() returns false if the z-order lists are dirty, which we would have to be careful about if this were run at layout time.

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