am ad278f22: Merge change I6bce6d87 into eclair-mr2

Merge commit 'ad278f2276de23197571e486ad387dacc7f346ee' into eclair-mr2-plus-aosp

* commit 'ad278f2276de23197571e486ad387dacc7f346ee':
  Adds a WAVExtractor for 16-bit signed PCM audio wave files.