Reviewed by Dan Bernstein.

        Fixed the override of the "AppleScrollBarVariant" system setting to also work with HIToolbox.

        https://bugs.webkit.org/show_bug.cgi?id=22054

        * DumpRenderTree/mac/DumpRenderTree.mm:
        (setDefaultsToConsistentValuesForTesting):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@38082 268f45cc-cd09-0410-ab3c-d52691b4dbfc