Adding key press detection in the browser process.

content/renderer/media/webrtc_audio_device_impl.cc

Index: content/renderer/media/webrtc_audio_device_impl.cc
diff --git a/content/renderer/media/webrtc_audio_device_impl.cc b/content/renderer/media/webrtc_audio_device_impl.cc
index c40e0a2219b773eea21536cfc38d2259f3f966ea..93e024bc6b2ef9b894ca62b0973a90a0298ce0a1 100644
--- a/content/renderer/media/webrtc_audio_device_impl.cc
+++ b/content/renderer/media/webrtc_audio_device_impl.cc
@@ -59,7 +59,8 @@ int WebRtcAudioDeviceImpl::CaptureData(const std::vector<int>& channels,
                                        int number_of_frames,
                                        int audio_delay_milliseconds,
                                        int current_volume,
-                                       bool need_audio_processing) {
+                                       bool need_audio_processing,
+                                       bool key_pressed) {
   int total_delay_ms = 0;
   {
     base::AutoLock auto_lock(lock_);
@@ -75,11 +76,9 @@ int WebRtcAudioDeviceImpl::CaptureData(const std::vector<int>& channels,
   // Write audio samples in blocks of 10 milliseconds to the registered
   // webrtc::AudioTransport sink. Keep writing until our internal byte
   // buffer is empty.
-  // TODO(niklase): Wire up the key press detection.
   const int16* audio_buffer = audio_data;
   const int samples_per_10_msec = (sample_rate / 100);
   int accumulated_audio_samples = 0;
-  bool key_pressed = false;
   uint32_t new_volume = 0;
   while (accumulated_audio_samples < number_of_frames) {
     // Deliver 10ms of recorded 16-bit linear PCM audio.