fast/frames/sandboxed-iframe-storage.html is timing out on the apple-windows-3 bot. This is a Windows XP machine that runs Release tests. It doesn't seem to be timing out on the other Windows bots.
I've added this test to the Skipped file.
<rdar://problem/8615535>
fast/js/exceptions-thrown-in-callbacks.html is also timing out on this bot. I filed bug 48999 for that one. That test started timing out after I added this one to the Skipped file; maybe there's some earlier test that's making both of them time out?