Remove dead code related to media device enumerations and monitoring.

content/renderer/media/mock_media_stream_dispatcher.cc

Index: content/renderer/media/mock_media_stream_dispatcher.cc
diff --git a/content/renderer/media/mock_media_stream_dispatcher.cc b/content/renderer/media/mock_media_stream_dispatcher.cc
index 89bef8f214fa21c7930d484477b3a55689118453..77bea1f5b417ed83fd7b5a7f4343d7204c2a29a3 100644
--- a/content/renderer/media/mock_media_stream_dispatcher.cc
+++ b/content/renderer/media/mock_media_stream_dispatcher.cc
@@ -18,8 +18,6 @@ namespace content {
 MockMediaStreamDispatcher::MockMediaStreamDispatcher()
     : MediaStreamDispatcher(NULL),
       audio_input_request_id_(-1),
-      audio_output_request_id_(-1),
-      video_request_id_(-1),
       request_stream_counter_(0),
       stop_audio_device_counter_(0),
       stop_video_device_counter_(0),
@@ -56,14 +54,6 @@ void MockMediaStreamDispatcher::CancelGenerateStream(
   EXPECT_EQ(request_id, audio_input_request_id_);
 }
 
-void MockMediaStreamDispatcher::EnumerateDevices(
-    int request_id,
-    const base::WeakPtr<MediaStreamDispatcherEventHandler>& event_handler,
-    MediaStreamType type,
-    const url::Origin& security_origin) {
-  NOTREACHED();
-}
-
 void MockMediaStreamDispatcher::StopStreamDevice(
     const StreamDeviceInfo& device_info) {
   if (IsAudioInputMediaType(device_info.device.type)) {
@@ -102,10 +92,6 @@ void MockMediaStreamDispatcher::AddAudioInputDeviceToArray(
   if (matched_output) {
     audio.device.matched_output_device_id =
         kAudioOutputDeviceIdPrefix + base::IntToString(session_id_);
-    audio.device.group_id =
-        kAudioOutputDeviceIdPrefix + base::IntToString(session_id_);
-  } else {
-    audio.device.group_id = audio.device.id + "groupid";
   }
   audio.session_id = session_id_;
   audio.device.input.sample_rate = media::AudioParameters::kAudioCDSampleRate;
@@ -114,18 +100,6 @@ void MockMediaStreamDispatcher::AddAudioInputDeviceToArray(
   audio_input_array_.push_back(audio);
 }
 
-void MockMediaStreamDispatcher::AddAudioOutputDeviceToArray() {
-  StreamDeviceInfo audio;
-  audio.device.id = kAudioOutputDeviceIdPrefix + base::IntToString(session_id_);
-  audio.device.group_id =
-      kAudioOutputDeviceIdPrefix + base::IntToString(session_id_);
-  audio.device.name = "speaker";
-  audio.device.type = MEDIA_DEVICE_AUDIO_OUTPUT;
-  audio.device.video_facing = MEDIA_VIDEO_FACING_NONE;
-  audio.session_id = session_id_;
-  audio_output_array_.push_back(audio);
-}
-
 void MockMediaStreamDispatcher::AddVideoDeviceToArray(bool facing_user) {
   StreamDeviceInfo video;
   video.device.id = test_same_id_ ? "test_id" : "video_device_id";