According to the FIXME, BUILDING_ON_* and TARGETING_* macros can be removed. They have been used nowhere in the code for a while.
Created attachment 223226 [details] patch
Comment on attachment 223226 [details] patch Seems fine to me! r=me
Comment on attachment 223226 [details] patch Clearing flags on attachment: 223226 Committed r163776: <http://trac.webkit.org/changeset/163776>
All reviewed patches have been landed. Closing bug.