Reviewed by Darin.

    Reviewed by Darin.

        - http://bugzilla.opendarwin.org/show_bug.cgi?id=6905
          DumpRenderTree needs a way to force painting (to allow invalidation tests)

        * DumpRenderTree/DumpRenderTree.m:
        (dump): If display() has been called during the test, grab the pixels from
        the view, after letting it repaint invalidated rects.
        (+[LayoutTestController isSelectorExcludedFromWebScript:]):
        (-[LayoutTestController display]): Added. Calls -display on the view
        and changes the subsequent behavior of dump().
        (dumpRenderTree):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@14024 268f45cc-cd09-0410-ab3c-d52691b4dbfc