Currently fast/media/mq-transform-02.html and fast/media/mq-transform-03.html rely on HW COMP being off on Leopard, or they fail. If Core Video is fixed (see http://trac.webkit.org/changeset/55100) these tests will fail. They also fail with https://bugs.webkit.org/show_bug.cgi?id=35759 if WebGL is turned on. The right fix is to do a runtime check in DRT, like we do on Windows with the --print-supported-features flag. Then we can turn on or off subdirectories with these tests in them.
Bugs like bug 38912 (and possibly bug 36925) could be solved by this.