This test was introduced in r203083 and fails because it depends on a WKTR method which is not implemented for ATK because it appears to be specific to AXAPI. That said, we can fake it for spin buttons and by doing so keep the failing test cross-platform. I'll do that later today.
<rdar://problem/27325397>
Created attachment 283551 [details] Patch
Comment on attachment 283551 [details] Patch Clearing flags on attachment: 283551 Committed r203170: <http://trac.webkit.org/changeset/203170>
All reviewed patches have been landed. Closing bug.