[Webkit-unassigned] [Bug 70634] Mark GraphicsLayers as opaque when possible

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=70634





--- Comment #60 from Dana Jansens <danakj at chromium.org>  2011-11-22 12:09:15 PST ---
(In reply to comment #59)
> With composited <img> tags, the backing uses GraphicsLayer::setContentsToImage() rather than the general code-path.  Opaque-ness needs to be tested in the GraphicsLayer subclass.
> 
> In order to test opaque RenderImage objects, we need the image to be a child of a composited object.  This patch doesn't consider child RenderObjects so we can't test them just yet.  I've created tests for them in the next-step edition.

Sorry for the noise. I see that RenderImage objects are used for composited <img> tags when they have a border/padding/etc.  So adding tests in here for images with borders/padding/etc.

As noted by the bots, this will break some existing LayoutTests due to them now have opaque stuff.  I've never dealt with this before and would appreciate some guidance on this process. Should I be resetting results in those tests in this CL? Should I make a follow up CL with the reset?

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