Set audio format before adding pepper sink to audio track.

content/renderer/media/webrtc_audio_capturer.h

Index: content/renderer/media/webrtc_audio_capturer.h
diff --git a/content/renderer/media/webrtc_audio_capturer.h b/content/renderer/media/webrtc_audio_capturer.h
index b8aae22c4f094ff5594ef61d648a210566790efd..465d29ecba2849148d611dd613310693d1743abf 100644
--- a/content/renderer/media/webrtc_audio_capturer.h
+++ b/content/renderer/media/webrtc_audio_capturer.h
@@ -105,6 +105,10 @@ class CONTENT_EXPORT WebRtcAudioCapturer
   // call Stop()
   void Stop();
 
+  // Returns the output format.
+  // Called on the main render thread.
+  const media::AudioParameters& GetOutputFormat() const;

[DaleCurtis, 2015/01/27 19:50:09]

Remove const&

[Anand Mistry (off Chromium), 2015/01/27 23:14:50]

Done.

+
   // Used by the unittests to inject their own source to the capturer.
   void SetCapturerSourceForTesting(
       const scoped_refptr<media::AudioCapturerSource>& source,