[Webkit-unassigned] [Bug 253690] New: [UI-side compositing] Scrolling triggers more layouts via updating the layout viewport

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=253690

            Bug ID: 253690
           Summary: [UI-side compositing] Scrolling triggers more layouts
                    via updating the layout viewport
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Scrolling
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: simon.fraser at apple.com
                CC: simon.fraser at apple.com

With UI-side compositing, we see more layouts happening while scrolling than without. These layouts are triggered by frameview::updateLayoutViewport() when it computes a new layout viewport origin.

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