Merge "NuPlayer: ignore stale message for teardown." into nyc-dev
am: 8986b4d

* commit '8986b4d50c8d46de2a8950cb23fcc4138df67191':
  NuPlayer: ignore stale message for teardown.

Change-Id: Id539b8b717f809d2a99104259311e52a9858aea2