[Webkit-unassigned] [Bug 106326] New: Gmail gets painted left and then restored

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=106326

           Summary: Gmail gets painted left and then restored
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
        OS/Version: Mac OS X 10.8
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Event Handling
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: petermayo at chromium.org
                CC: rjkroege at chromium.org


As the cursor move around the webkit window on GMail, repaints happen (including scroll bar) a few hundred pixels left of current position, and then it is painted correctly. 

Produces a flashing effect that is most egregious.

The timing is window size dependent - bigger is slower and easier to see what's going on.

MacOS 10.8.2,  MacBook Pro.  Public gmail.

rjkroege has observed my instance of this effect.

The component is a wild ass guess.

Nightly r139051

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