Adding audio to video_quality_test.

webrtc/video/video_quality_test.h

Index: webrtc/video/video_quality_test.h
diff --git a/webrtc/video/video_quality_test.h b/webrtc/video/video_quality_test.h
index b1f59e540d880a845f37c4a260d42405a74938fa..35ac3502c8838b381010ac13ef198d72a3e83595 100644
--- a/webrtc/video/video_quality_test.h
+++ b/webrtc/video/video_quality_test.h
@@ -105,6 +105,9 @@ class VideoQualityTest : public test::CallTest {
   void SetupCommon(Transport* send_transport, Transport* recv_transport);
   void SetupScreenshare();
 
+  void CreateVoiceEngine();
+  void DestroyVoiceEngine();
+
   // We need a more general capturer than the FrameGeneratorCapturer.
   std::unique_ptr<test::VideoCapturer> capturer_;
   std::unique_ptr<test::TraceToStderr> trace_to_stderr_;
@@ -113,6 +116,23 @@ class VideoQualityTest : public test::CallTest {
   VideoCodecUnion codec_settings_;
   Clock* const clock_;
 
+  struct VoiceEngineState {

[minyue-webrtc, 2016/07/12 10:09:36]

I think this, and CreateVoiceEngine/DestroyVoiceEngine belongs to
RunWithVideoRenderer only, therefore I moved them as static in .cc

+    VoiceEngineState()
+        : voice_engine(nullptr),
+          base(nullptr),
+          codec(nullptr),
+          send_channel_id(-1),
+          receive_channel_id(-1) {}
+
+    VoiceEngine* voice_engine;
+    VoEBase* base;
+    VoECodec* codec;
+    int send_channel_id;
+    int receive_channel_id;
+  };
+  VoiceEngineState voe_;
+  std::unique_ptr<test::FakeAudioDevice> fake_audio_device_;
+
   Params params_;
 };