[Webkit-unassigned] [Bug 71916] New: [chromium] scroll deltas are cleared during commit to the main thread

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=71916

           Summary: [chromium] scroll deltas are cleared during commit to
                    the main thread
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: hclam at google.com


Scroll deltas of CCLayerImpl are needed to properly position layers that are fixed to the container layer.

Compositor currently clears scroll deltas when committing the scroll deltas to the main thread. This leave a brief time when scroll deltas are not available and fixed layers are not positioned properly.

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