[Webkit-unassigned] [Bug 255960] New: Async scrolling on Mac creates implicit CA transactions

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=255960

            Bug ID: 255960
           Summary: Async scrolling on Mac creates implicit CA
                    transactions
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: InRadar
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mattwoodrow at apple.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

RemoteScrollingTreeMac can mutate the layer tree on the scrolling thread, which creates implicit CA transactions. Some clients aren't expecting this, so we should instead create explicit transactions when needed.

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