| Index: webrtc/video/audio_receive_stream.cc
 | 
| diff --git a/webrtc/video/audio_receive_stream.cc b/webrtc/video/audio_receive_stream.cc
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| index 88fd431f8255ed032d72100b88f9398aa3c56ff4..a95c06a4ce9e604746d9b6495b25054ce1c7b75c 100644
 | 
| --- a/webrtc/video/audio_receive_stream.cc
 | 
| +++ b/webrtc/video/audio_receive_stream.cc
 | 
| @@ -61,6 +61,9 @@ AudioReceiveStream::AudioReceiveStream(
 | 
|      } else if (ext.name == RtpExtension::kAbsSendTime) {
 | 
|        CHECK(rtp_header_parser_->RegisterRtpHeaderExtension(
 | 
|            kRtpExtensionAbsoluteSendTime, ext.id));
 | 
| +    } else if (ext.name == RtpExtension::kTransportSequenceNumber) {
 | 
| +      CHECK(rtp_header_parser_->RegisterRtpHeaderExtension(
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| +          kRtpExtensionTransportSequenceNumber, ext.id));
 | 
|      } else {
 | 
|        RTC_NOTREACHED() << "Unsupported RTP extension.";
 | 
|      }
 | 
| 
 |