[Webkit-unassigned] [Bug 89144] Avoid allocating huge layers for an element with a positioned child outside of its bounds

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=89144





--- Comment #1 from Simon Fraser (smfr) <simon.fraser at apple.com>  2012-06-14 17:39:23 PST ---
Julian: I think we should modify how we accumulate regions in the overlap map, which would make this easy to fix. We need to accumulate a Region for the current compositing layer, rather than just doing a union with the region[n-1] in the overlap map.

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