| Index: webrtc/audio/audio_receive_stream.cc
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| diff --git a/webrtc/audio/audio_receive_stream.cc b/webrtc/audio/audio_receive_stream.cc
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| index fbd61ccfd4791e3386a9cd68565c053782fe2616..e6debb88bdad30f03716be86d45fbd78cb6803be 100644
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| --- a/webrtc/audio/audio_receive_stream.cc
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| +++ b/webrtc/audio/audio_receive_stream.cc
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| @@ -219,6 +219,11 @@ void AudioReceiveStream::SetGain(float gain) {
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|    channel_proxy_->SetChannelOutputVolumeScaling(gain);
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|  }
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|  
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| +const std::vector<RtpSource> AudioReceiveStream::GetSources() {
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| +  RTC_DCHECK_RUN_ON(&worker_thread_checker_);
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| +  return channel_proxy_->GetSources();
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| +}
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| +
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|  AudioMixer::Source::AudioFrameInfo AudioReceiveStream::GetAudioFrameWithInfo(
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|      int sample_rate_hz,
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|      AudioFrame* audio_frame) {
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| 
 |