[Webkit-unassigned] [Bug 109866] Should not create backing store for frame borders

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=109866





--- Comment #4 from Tien-Ren Chen <trchen at chromium.org>  2013-02-14 15:36:55 PST ---
(In reply to comment #3)
> (From update of attachment 188433 [details])
> I don't think this is correct for platforms that don't necessarily create backing store for the frame contents.

I'm not sure how could that happen, but in that case, the frame contents will create its own backing store, since its compositing ancestor doesn't have one.

> I'm also suspicious that no test results have changed, which maybe be true but if this results in a behavior change you should add a new test.

Test result changes mentioned in last comment. This patch doesn't update test expectation yet. I'm waiting for the bots to give me the list I need to change.

--> with GraphicsLayer::drawsContent differences, and 2 pixel tests with sub-pixel difference

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