We are missing -apple-system-monospaced-numbers.
<rdar://problem/21778334>
Created attachment 256634 [details] Patch
Comment on attachment 256634 [details] Patch This patch looks straightforward to me.
Comment on attachment 256634 [details] Patch Clearing flags on attachment: 256634 Committed r186748: <http://trac.webkit.org/changeset/186748>
All reviewed patches have been landed. Closing bug.