Merge "Implement client playback timestamps with 64 bit accuracy" into nyc-dev
am: f3bcfeb

* commit 'f3bcfebc7183e2a44a86060861f8446b8163906b':
  Implement client playback timestamps with 64 bit accuracy

Change-Id: I77ef69988b0eb0cb5b24626c2984498304b42f68