am cee0b97e: Merge "Free AssetManager weak refs before unmounting" into gingerbread

Merge commit 'cee0b97eed0a460e2da58500e24d3e4dac5cb9f6' into gingerbread-plus-aosp

* commit 'cee0b97eed0a460e2da58500e24d3e4dac5cb9f6':
  Free AssetManager weak refs before unmounting