[Webkit-unassigned] [Bug 129154] An element having -webkit-mix-blend mode should only blend with the contents of the parent stacking context

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=129154





--- Comment #7 from Simon Fraser (smfr) <simon.fraser at apple.com>  2014-02-24 10:57:04 PST ---
(From update of attachment 224877)
View in context: https://bugs.webkit.org/attachment.cgi?id=224877&action=review

> Source/WebCore/rendering/RenderLayer.cpp:836
> +            ancestor->m_isolatesBlending = renderer().style().hasBlendMode();

Would have been nice to call setIsolatesBlending() here.

What ensures that m_isolatesBlending is updated when layers change between being stacking context and not? I don't see how the code currently can correctly maintain the m_isolatesBlending flag.

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