There is no ATK mapping for the footer element. It should be mapped to ATK_ROLE_FOOTER which has been in ATK since 2007.
<rdar://problem/18995453>
Created attachment 241676 [details] Patch
Comment on attachment 241676 [details] Patch Clearing flags on attachment: 241676 Committed r176158: <http://trac.webkit.org/changeset/176158>
All reviewed patches have been landed. Closing bug.