Add an AudioFrameOperations unittest.

Additionally, reformat audio_frame_operations to Goog style.

BUG=issue451
TEST=voice_engine_unittests

Review URL: https://webrtc-codereview.appspot.com/528001

git-svn-id: http://webrtc.googlecode.com/svn/trunk@2133 4adac7df-926f-26a2-2b94-8c16560cd09d
4 files changed