Merge changes I801090d9,I638ef7ce into nyc-dev
am: 1eaef1a01e

* commit '1eaef1a01e70de9f567511ca0705e79403d902b9':
  SupportLeanbackShowcase: add Section and Divider
  SupportLeanbackShowcase: remove properietary resources

Change-Id: I62382446952381717786368b297f29f1f48be642