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

trunk/src/media/audio/audio_input_device.cc

Index: trunk/src/media/audio/audio_input_device.cc
===================================================================
--- trunk/src/media/audio/audio_input_device.cc	(revision 217773)
+++ trunk/src/media/audio/audio_input_device.cc	(working copy)
@@ -294,7 +294,6 @@
   DCHECK_EQ(buffer->params.size,
             segment_length_ - sizeof(AudioInputBufferParameters));
   double volume = buffer->params.volume;
-  bool key_pressed = buffer->params.key_pressed;
 
   int audio_delay_milliseconds = pending_data / bytes_per_ms_;
   int16* memory = reinterpret_cast<int16*>(&buffer->audio[0]);
@@ -309,8 +308,8 @@
 
   // Deliver captured data to the client in floating point format
   // and update the audio-delay measurement.
-  capture_callback_->Capture(
-      audio_bus_.get(), audio_delay_milliseconds, volume, key_pressed);
+  capture_callback_->Capture(audio_bus_.get(),
+                             audio_delay_milliseconds, volume);
 }
 
 }  // namespace media