Stop media stream source when audio capture error occurs.

content/renderer/media/external_media_stream_audio_source.cc

Index: content/renderer/media/external_media_stream_audio_source.cc
diff --git a/content/renderer/media/external_media_stream_audio_source.cc b/content/renderer/media/external_media_stream_audio_source.cc
index 60a68241b6fff060060078e60693b6ea43010041..7c2977c2907c46249730468bb2f63b81ffbe75a3 100644
--- a/content/renderer/media/external_media_stream_audio_source.cc
+++ b/content/renderer/media/external_media_stream_audio_source.cc
@@ -72,10 +72,7 @@ void ExternalMediaStreamAudioSource::Capture(const media::AudioBus* audio_bus,
 }
 
 void ExternalMediaStreamAudioSource::OnCaptureError(const std::string& why) {
-  // As of this writing, this method doesn't get called for anything useful,
-  // and all other implementors just log the message, but don't disconnect sinks
-  // or take any other action. So, just log the error.
-  LOG(ERROR) << why;
+  StopSourceOnError(why);
 }
 
 }  // namespace content