Make sure the parent visibility state is set up properly on the outermost ScrollView widget.
        This fixes the repainting issues with viewless WebKit on Mac.

        Reviewed by Sam Weinig

        * WebCoreSupport/WebFrameLoaderClient.mm:
        (WebFrameLoaderClient::transitionToCommittedForNewPage):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@37375 268f45cc-cd09-0410-ab3c-d52691b4dbfc