[Webkit-unassigned] [Bug 81889] New: [Qt] Enable FAST_MOBILE_SCROLLING when scrolling is delegated

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=81889

           Summary: [Qt] Enable FAST_MOBILE_SCROLLING when scrolling is
                    delegated
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: allan.jensen at nokia.com


To avoid rendering artifacts when blitting on scroll in the UIProcess we need to use the FAST_MOBILE_SCROLLING to disable background-attachment: fixed.

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