https://trac.webkit.org/changeset/177259 removed almost everything, but PassRef.h with a "// Delete me." content. OK, let's delete it.
Created attachment 284874 [details] Patch
Comment on attachment 284874 [details] Patch r=me, thanks!
Comment on attachment 284874 [details] Patch Clearing flags on attachment: 284874 Committed r203907: <http://trac.webkit.org/changeset/203907>
All reviewed patches have been landed. Closing bug.