am 5b1f0c9f: Merge "RTP: reduce the latency by overlapping AudioRecord and AudioTrack." into gingerbread

Merge commit '5b1f0c9f6416719ef6194dd0c4e0f626ec84082c' into gingerbread-plus-aosp

* commit '5b1f0c9f6416719ef6194dd0c4e0f626ec84082c':
  RTP: reduce the latency by overlapping AudioRecord and AudioTrack.