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

* commit '380f3b12a4725a0534d62ada7c6f3bd67ebd0d01':
  Release AssetManagers when ejecting storage.

Change-Id: I54282cfcf53279f87e66cc1263ae9663fe94bc04