A selection in one of these tree outlines should allow the delete key to work like the delete button.
<rdar://problem/22317463>
Created attachment 259221 [details] Patch
Comment on attachment 259221 [details] Patch Clearing flags on attachment: 259221 Committed r188571: <http://trac.webkit.org/changeset/188571>
All reviewed patches have been landed. Closing bug.