The following tests are failing after r159572:
The tests all check for the 'Mac OS X' substring in the navigator's user agent, and adjust the expected keys based on that.
fast/dom/access-key-iframe.html regressed with r159572 as well.
All these tests seem to be passing again after r169799 <http://trac.webkit.org/r169799>.
The next gardening patch removes the failure expectations for these 8 tests (and some others) https://bugs.webkit.org/show_bug.cgi?id=134665.