MathML tokens, tables, and row-like elements should not be exposed with ATK_ROLE_UNKNOWN. Ultimately, these elements should be exposed using ATK subroles which currently do not exist but will hopefully be coming soon (tm). In the meantime, exposing these elements with a reasonable known AtkRole will be quite helpful.
<rdar://problem/19176431>
Created attachment 242820 [details] Patch
A couple things about the patch I just attached: 1. The layout test suggests things are still being mapped to ATK_ROLE_UNKNOWN. That is because the platform bots are not yet using a new-enough version of ATK to have ATK_ROLE_STATUS (see bug 139070). 2. There is not yet updated Mac expectations. I'm traveling at the moment and didn't pack my iMac. ;) EWS should hopefully spit up with test text diffs for the Mac which I can use to do a new patch with updated Mac expectations.
Comment on attachment 242820 [details] Patch Attachment 242820 [details] did not pass mac-wk2-ews (mac-wk2): Output: http://webkit-queues.appspot.com/results/4937364036124672 New failing tests: accessibility/roles-exposed.html
Created attachment 242828 [details] Archive of layout-test-results from webkit-ews-10 for mac-mountainlion-wk2 The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews. Bot: webkit-ews-10 Port: mac-mountainlion-wk2 Platform: Mac OS X 10.8.5
Comment on attachment 242820 [details] Patch Attachment 242820 [details] did not pass mac-ews (mac): Output: http://webkit-queues.appspot.com/results/5591009740193792 New failing tests: accessibility/roles-exposed.html
Created attachment 242831 [details] Archive of layout-test-results from webkit-ews-06 for mac-mountainlion The attached test failures were seen while running run-webkit-tests on the mac-ews. Bot: webkit-ews-06 Port: mac-mountainlion Platform: Mac OS X 10.8.5
Created attachment 242901 [details] Patch
Chris, when you get a chance could you please review this? Thanks!
Comment on attachment 242901 [details] Patch Clearing flags on attachment: 242901 Committed r177025: <http://trac.webkit.org/changeset/177025>
All reviewed patches have been landed. Closing bug.