Adding key press detection in the browser process.

content/renderer/media/webrtc_local_audio_track.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_MEDIA_WEBRTC_LOCAL_AUDIO_TRACK_H_
 #define CONTENT_RENDERER_MEDIA_WEBRTC_LOCAL_AUDIO_TRACK_H_
 
 #include <list>
 #include <string>
 
@@ skipping 52 matching lines @@
 
  private:
   typedef std::list<scoped_refptr<WebRtcAudioCapturerSinkOwner> > SinkList;
 
   // content::WebRtcAudioCapturerSink implementation.
   // Called on the AudioInputDevice worker thread.
   virtual void CaptureData(const int16* audio_data,
                            int number_of_channels,
                            int number_of_frames,
                            int audio_delay_milliseconds,
-                           double volume) OVERRIDE;
+                           double volume,
+                           bool key_pressed) OVERRIDE;
 
   // Can be called on different user threads.
   virtual void SetCaptureFormat(const media::AudioParameters& params) OVERRIDE;
 
   // webrtc::AudioTrackInterface implementation.
   virtual webrtc::AudioSourceInterface* GetSource() const OVERRIDE;
 
   // webrtc::MediaStreamTrack implementation.
   virtual std::string kind() const OVERRIDE;
 
@@ skipping 16 matching lines @@
 
   // Protects |params_| and |sinks_|.
   mutable base::Lock lock_;
 
   DISALLOW_COPY_AND_ASSIGN(WebRtcLocalAudioTrack);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_WEBRTC_LOCAL_AUDIO_TRACK_H_