Use TestSuite for startup in audioproc_unittest's custom main().
Use TestSuite for startup in audioproc_unittest's custom main().

TESTED=invoked audioproc_unittest with an absolute path in a working directory outside the tree.

Review URL: https://webrtc-codereview.appspot.com/897006

git-svn-id: 9b397c5dfe384c04b1b200d5305b653241000171@2942 4adac7df-926f-26a2-2b94-8c16560cd09d

lukeweber/webrtc-src-override,lukeweber/webrtc-src-override,lukeweber/webrtc-src-override,lukeweber/webrtc-src-override,lukeweber/webrtc-src-override,lukeweber/webrtc-src-override,lukeweber/webrtc-src-override