[Webkit-unassigned] [Bug 76478] iframe root layers are erroneously opaque in WK1 windows

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=76478


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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |enne at google.com,
                   |                            |jamesr at chromium.org,
                   |                            |simon.fraser at apple.com




--- Comment #1 from Simon Fraser (smfr) <simon.fraser at apple.com>  2012-01-17 14:35:22 PST ---
I think http://trac.webkit.org/changeset/92874 may have broken this. FrameView::useSlowRepaints() returns 'false' for iframes with composited content, but Widget::paint() (in WidgetMac) relies on [[scrollView contentView] copiesOnScroll] to decide when to turn off background drawing.

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