[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 #15 from Darin Adler <darin at apple.com> ---
So we need an in-WebKit data structure for tracking repaints and then we’d communicate any repainting to the OS only after updating compositing layers.

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