[Webkit-unassigned] [Bug 102035] New: REGRESSION(134048): TiledBackingStore must create tiles when the contents rect is changed.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=102035

           Summary: REGRESSION(134048): TiledBackingStore must create
                    tiles when the contents rect is changed.
           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: luxtella at company100.net


Before r134048, the visibleRect contained information of both the viewport and
the contents rect. Now the visible rect is related to only the viewport. So
TiledBackingStore::coverWithTilesIfNeeded() early returns even if the contents
rect is changed, because changing the contents rect is independent on changing
both a trajectory vector and the visible rect.

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