Adding key press detection in the browser process.

content/renderer/media/webrtc_local_audio_track.cc

Index: content/renderer/media/webrtc_local_audio_track.cc
diff --git a/content/renderer/media/webrtc_local_audio_track.cc b/content/renderer/media/webrtc_local_audio_track.cc
index fc89468536be3eb6f41e135086b49e8738d248c8..6b6ea98ef69c020bdb28742cc6b80dabb0867e16 100644
--- a/content/renderer/media/webrtc_local_audio_track.cc
+++ b/content/renderer/media/webrtc_local_audio_track.cc
@@ -48,7 +48,8 @@ void WebRtcLocalAudioTrack::CaptureData(const int16* audio_data,
                                         int number_of_channels,
                                         int number_of_frames,
                                         int audio_delay_milliseconds,
-                                        double volume) {
+                                        double volume,
+                                        bool key_pressed) {
   SinkList sinks;
   {
     base::AutoLock auto_lock(lock_);
@@ -65,8 +66,12 @@ void WebRtcLocalAudioTrack::CaptureData(const int16* audio_data,
   for (SinkList::const_iterator it = sinks.begin();
        it != sinks.end();
        ++it) {
-    (*it)->CaptureData(audio_data, number_of_channels, number_of_frames,
-                       audio_delay_milliseconds, volume);
+    (*it)->CaptureData(audio_data,
+                       number_of_channels,
+                       number_of_frames,
+                       audio_delay_milliseconds,
+                       volume,
+                       key_pressed);
   }
 }