102 struct ConfigHelper {  struct
103   explicit ConfigHelper(bool use_null_audio_processing)  in ConfigHelper()  function
107   ConfigHelper(rtc::scoped_refptr<MockAudioMixer> audio_mixer,  in ConfigHelper()  function
150   std::unique_ptr<AudioReceiveStreamImpl> CreateAudioReceiveStream() {  in CreateAudioReceiveStream()
159   AudioReceiveStreamInterface::Config& config() { return stream_config_; }  in config()
160   rtc::scoped_refptr<MockAudioMixer> audio_mixer() { return audio_mixer_; }  in audio_mixer()
161   MockChannelReceive* channel_receive() { return channel_receive_; }  in channel_receive()
163   void SetupMockForGetStats() {  in SetupMockForGetStats()
189   PacketRouter packet_router_;
190   MockRtcEventLog event_log_;
191   rtc::scoped_refptr<AudioState> audio_state_;
192   rtc::scoped_refptr<MockAudioMixer> audio_mixer_;
193   AudioReceiveStreamInterface::Config stream_config_;
195   RtpStreamReceiverController rtp_stream_receiver_controller_;
196   MockTransport rtcp_send_transport_;