When MS Office is installed on Mac, it installs fonts with the same names as system ones, but some of their metrics are different. Notably, Verdana subtest fails for fast/forms/text-control-intrinsic-widths.html.
<rdar://problem/20169289>
Created attachment 248710 [details] proposed fix
Comment on attachment 248710 [details] proposed fix Clearing flags on attachment: 248710 Committed r181569: <http://trac.webkit.org/changeset/181569>
All reviewed patches have been landed. Closing bug.
Updated Yosemite results of fast/text/international/bidi-mirror-he-ar.html in r181581. I'm not quite sure why the results changed, but they became more consistent across OS versions, and the test clearly still passes.