am 0a79bdbb: Trim the Bluetooth database off the main thread.

Merge commit '0a79bdbbfa3b79b808cbbe7490731e5aae4489e9' into gingerbread-plus-aosp

* commit '0a79bdbbfa3b79b808cbbe7490731e5aae4489e9':
  Trim the Bluetooth database off the main thread.