am 5c8a80b8: Merge change I4410ec8f into eclair-mr2

Merge commit '5c8a80b8fc7a25dda269cd16e0b90b35227fd625' into eclair-mr2-plus-aosp

* commit '5c8a80b8fc7a25dda269cd16e0b90b35227fd625':
  Framework-side DropBox service that maintains a size-bounded