am 2c2ce8e5: Merge "Added support for audio sessions in MediaPlayer and AudioTrack." into gingerbread

Merge commit '2c2ce8e53f5eb94916a5d0f40b2877cc7551870d' into gingerbread-plus-aosp

* commit '2c2ce8e53f5eb94916a5d0f40b2877cc7551870d':
  Added support for audio sessions in MediaPlayer and AudioTrack.