Adding typing detection to the APM in chrome.

content/renderer/media/media_stream_audio_processor.h

Index: content/renderer/media/media_stream_audio_processor.h
diff --git a/content/renderer/media/media_stream_audio_processor.h b/content/renderer/media/media_stream_audio_processor.h
index 12c0fc5ac63415a525d6afdeb3a7de79ada8121d..b84968a8beb8821089bf76bd422e04aa180a07b1 100644
--- a/content/renderer/media/media_stream_audio_processor.h
+++ b/content/renderer/media/media_stream_audio_processor.h
@@ -26,6 +26,7 @@ class AudioParameters;
 
 namespace webrtc {
 class AudioFrame;
+class TypingDetection;
 }
 
 namespace content {
@@ -154,6 +155,10 @@ class CONTENT_EXPORT MediaStreamAudioProcessor :
 
   // Flag to enable the stereo channels mirroring.
   bool audio_mirroring_;
+
+  //  Flags used by the typing detection.

[Henrik Grunell, 2014/02/18 09:24:06]

Two spaces after //. Remove one.

|typing_detected_| isn't actually used by the detection, it's the result of it.
Clarify the comment. How is |typing_detected_| used? Is it set when typing has
been detected?

[no longer working on chromium, 2014/02/18 17:47:09]

Added comment to explain that is the result from TD.

+  scoped_ptr<webrtc::TypingDetection> typing_detector_;
+  bool typing_detected_;
 };
 
 }  // namespace content