Merge changes Ib59a5b8a,I814c0406 into tm-qpr-dev

* changes:
  [Chipbar] Rename "chip" -> "view" in the generic TemporaryViewDisplayController (and other affected places).
  [Chipbar] Move the controller that was common between the media ttt sender and media ttt receiver into a more generic TemporaryViewDisplayController class.