Adding audio only mode to video loopback test.

webrtc/video/video_quality_test.h

 /*
  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 #ifndef WEBRTC_VIDEO_VIDEO_QUALITY_TEST_H_
@@ skipping 88 matching lines @@
   // Helper methods accessing only params_.
   std::string GenerateGraphTitle() const;
   void CheckParams();
 
   // Helper static methods.
   static VideoStream DefaultVideoStream(const Params& params);
   static std::vector<int> ParseCSV(const std::string& str);
 
   // Helper methods for setting up the call.
   void CreateCapturer(VideoCaptureInput* input);
-  void SetupCommon(Transport* send_transport, Transport* recv_transport);
+  void SetupVideo(Transport* send_transport, Transport* recv_transport);
   void SetupScreenshare();
+  void SetupAudio(int send_channel_id,
+                  int receive_channel_id,
+                  Call* call,
+                  Transport* transport,
+                  AudioReceiveStream** audio_receive_stream);
 
   // We need a more general capturer than the FrameGeneratorCapturer.
-  std::unique_ptr<test::VideoCapturer> capturer_;
+  std::unique_ptr<test::VideoCapturer> video_capturer_;
   std::unique_ptr<test::TraceToStderr> trace_to_stderr_;
   std::unique_ptr<test::FrameGenerator> frame_generator_;
-  std::unique_ptr<VideoEncoder> encoder_;
-  VideoCodecUnion codec_settings_;
+  std::unique_ptr<VideoEncoder> video_encoder_;
+  VideoCodecUnion video_codec_settings_;
   Clock* const clock_;
 
   Params params_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_VIDEO_VIDEO_QUALITY_TEST_H_