| Index: webrtc/voice_engine/channel_proxy.cc
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| diff --git a/webrtc/voice_engine/channel_proxy.cc b/webrtc/voice_engine/channel_proxy.cc
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| index bb56b078d193aedb8859e2bda89d487fc972cbe1..63c0678b8ae91ca61009662162babac233bae8cf 100644
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| --- a/webrtc/voice_engine/channel_proxy.cc
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| +++ b/webrtc/voice_engine/channel_proxy.cc
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| @@ -396,6 +396,11 @@ void ChannelProxy::RegisterLegacyReceiveCodecs() {
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|    channel()->RegisterLegacyReceiveCodecs();
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|  }
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|  
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| +std::vector<RtpContributingSource> ChannelProxy::GetContributingSources() {
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| +  RTC_DCHECK(worker_thread_checker_.CalledOnValidThread());
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| +  return channel()->GetContributingSources();
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| +}
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| +
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|  Channel* ChannelProxy::channel() const {
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|    RTC_DCHECK(channel_owner_.channel());
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|    return channel_owner_.channel();
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| 
 |