Placard icons act like buttons (can get keyboard focus and shows up in VoiceOver).
<rdar://problem/33011855>
Created attachment 313950 [details] Patch
Comment on attachment 313950 [details] Patch Clearing flags on attachment: 313950 Committed r218851: <http://trac.webkit.org/changeset/218851>
All reviewed patches have been landed. Closing bug.