Merge "Release AssetManagers when ejecting storage." into nyc-dev am: 380f3b12a4
am: 20340d0fc8

* commit '20340d0fc82bccf883898e9523f3c8aca8c9ac04':
  Release AssetManagers when ejecting storage.

Change-Id: I8053660edc7088f26c94fb2a3174a743a8d60636