| Index: content/renderer/media/external_media_stream_audio_source.h
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| diff --git a/content/renderer/media/external_media_stream_audio_source.h b/content/renderer/media/external_media_stream_audio_source.h
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| index f520ae0985abb145ce8bcb3e2a353e91ee360f93..615508f8e48163d96aa119cf36dbb4b4fa5e8edc 100644
 | 
| --- a/content/renderer/media/external_media_stream_audio_source.h
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| +++ b/content/renderer/media/external_media_stream_audio_source.h
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| @@ -40,6 +40,7 @@ class CONTENT_EXPORT ExternalMediaStreamAudioSource final
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|                 double volume,
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|                 bool key_pressed) final;
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|    void OnCaptureError(const std::string& message) final;
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| +  void OnCaptureMuted(bool is_muted) final;
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|  
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|    // The external source provided to the constructor.
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|    scoped_refptr<media::AudioCapturerSource> source_;
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| 
 |