am b4de3dca: Merge "OBB: rearrange to be entirely asynchronous" into gingerbread

Merge commit 'b4de3dca96b9ff18562062e181dcd8b83e641e45' into gingerbread-plus-aosp

* commit 'b4de3dca96b9ff18562062e181dcd8b83e641e45':
  OBB: rearrange to be entirely asynchronous