In order to maintain test coverage for the old API (AudioCodingModule) during the transition period, the old test was copied to AcmReceiverTestOldApi. Modified and extended AudioCoding and the implementation to make the test compile and run. Created a converter method from new to old config struct BUG=3520 R=kwiberg@webrtc.org Review URL: https://webrtc-codereview.appspot.com/31409004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@7259 4adac7df-926f-26a2-2b94-8c16560cd09d