[Webkit-unassigned] [Bug 194289] Glitch-free async scrolling

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=194289

--- Comment #12 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
(In reply to Simon Fraser (smfr) from comment #11)

> Actually you only need to do the scrolling tree pass on each compositing
> flush (and you have to do that before computing tiling areas which rely on
> these positions).

And with UI-side compositing we effectively do this already in RemoteLayerTreeDrawingAreaProxy::commitLayerTree(), by calling m_webPageProxy.scrollingCoordinatorProxy()->viewportChangedViaDelegatedScrolling().

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