Revert 217768 "Adding key press detection in the browser process."

trunk/src/content/renderer/media/webrtc_audio_device_impl.h

Index: trunk/src/content/renderer/media/webrtc_audio_device_impl.h
===================================================================
--- trunk/src/content/renderer/media/webrtc_audio_device_impl.h	(revision 217773)
+++ trunk/src/content/renderer/media/webrtc_audio_device_impl.h	(working copy)
@@ -223,8 +223,7 @@
                           int number_of_frames,
                           int audio_delay_milliseconds,
                           int current_volume,
-                          bool need_audio_processing,
-                          bool key_pressed) = 0;
+                          bool need_audio_processing) = 0;
 
   // Set the format for the capture audio parameters.
   virtual void SetCaptureFormat(const media::AudioParameters& params) = 0;
@@ -340,8 +339,7 @@
                           int number_of_frames,
                           int audio_delay_milliseconds,
                           int current_volume,
-                          bool need_audio_processing,
-                          bool key_pressed) OVERRIDE;
+                          bool need_audio_processing) OVERRIDE;
 
   // Called on the main render thread.
   virtual void SetCaptureFormat(const media::AudioParameters& params) OVERRIDE;