[Webkit-unassigned] [Bug 145189] New: Investigate removing mutex from ScrollingTree

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=145189

            Bug ID: 145189
           Summary: Investigate removing mutex from ScrollingTree
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: bfulgham at webkit.org

The "setMainFrameIsRubberBanding/isRubberBandInProgress" and "setMainFrameIsScrollSnapping/isScrollSnapInProgress" use a mutex to coordinate main thread/scrolling thread communications.

Instead, we should have these values copied to the scrolling thread on the scroll state node tree, and have any updates messages back from the scrolling thread, as we do for other values.

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