[Webkit-unassigned] [Bug 84393] Avoid calling updateCompositingLayers() more than once before each render

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=84393

--- Comment #14 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
(In reply to comment #13)
> Would it hurt compositing too much to make updating the compositing layers a
> completely separate pass from layout?

No, that would be ideal. The problem is that we can't easily disassociate compositing layer updates from layout without losing repaints. If we stored repaints differently this would be easier to do.

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