Merge "Messaging doesn\'t allow sharing of its own files" into nyc-dev am: ca5fc9fa7d
am: 0566cc6b9a

* commit '0566cc6b9a0db6a58034e3837adfbc9ba6ab762b':
  Messaging doesn't allow sharing of its own files

Change-Id: Ia4e2da91fa6479011d1966dd5d604211af416745