am 320cdcb1: Merge "RTP: Delay the initialization of AudioTrack and AudioRecord." into gingerbread

Merge commit '320cdcb122505ba703326a102f9b13d2f2f8847a' into gingerbread-plus-aosp

* commit '320cdcb122505ba703326a102f9b13d2f2f8847a':
  RTP: Delay the initialization of AudioTrack and AudioRecord.