This CL converts the unit tests for AudioVector from typed tests to regular tests. It is in preparation for removing templatization for AudioVector in an upcoming CL. BUG=1363 R=turaj@webrtc.org Review URL: https://webrtc-codereview.appspot.com/2319005 git-svn-id: http://webrtc.googlecode.com/svn/trunk@4903 4adac7df-926f-26a2-2b94-8c16560cd09d