Added an empty AudioTransportProxy to AudioState.

webrtc/audio/audio_receive_stream_unittest.cc

Index: webrtc/audio/audio_receive_stream_unittest.cc
diff --git a/webrtc/audio/audio_receive_stream_unittest.cc b/webrtc/audio/audio_receive_stream_unittest.cc
index bde68ed3ae7edb79e3422f2f758350aebe44c638..fe7e934202f505d087ba01693d4a18b768858c22 100644
--- a/webrtc/audio/audio_receive_stream_unittest.cc
+++ b/webrtc/audio/audio_receive_stream_unittest.cc
@@ -78,6 +78,10 @@ struct ConfigHelper {
         RegisterVoiceEngineObserver(_)).WillOnce(Return(0));
     EXPECT_CALL(voice_engine_,
         DeRegisterVoiceEngineObserver()).WillOnce(Return(0));
+    EXPECT_CALL(voice_engine_, audio_processing());

[the sun, 2016/11/14 13:50:08]

Q: Is .Times(1) the default?

[aleloi, 2016/11/14 14:24:42]

Yes, the default is 1 when there is no .WillOnce or .WillRepeatedly

ref:
https://github.com/google/googletest/blob/master/googlemock/docs/CheatSheet.m...

+    EXPECT_CALL(voice_engine_, audio_device_module());
+    EXPECT_CALL(voice_engine_, audio_transport());
+
     AudioState::Config config;
     config.voice_engine = &voice_engine_;
     audio_state_ = AudioState::Create(config);