Remove dead code related to media device enumerations and monitoring.

content/renderer/media/user_media_client_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/media/user_media_client_impl.h"
 
 #include <stddef.h>
 
 #include <utility>
 #include <vector>
@@ skipping 594 matching lines @@
     for (auto& web_track : tracks) {
       MediaStreamTrack* track = MediaStreamTrack::GetTrack(web_track);
       if (track)
         track->Stop();
     }
   }
 
   DeleteUserMediaRequestInfo(request);
 }
 
-// TODO(guidou): Remove once this method is removed from the
-// MediaStreamDispatcherEventHandler interface. http://648183.
-void UserMediaClientImpl::OnDevicesEnumerated(
-    int request_id,
-    const StreamDeviceInfoArray& device_array) {
-  NOTREACHED();
-}
-
 void UserMediaClientImpl::OnDeviceOpened(
     int request_id,
     const std::string& label,
     const StreamDeviceInfo& video_device) {
   DVLOG(1) << "UserMediaClientImpl::OnDeviceOpened("
            << request_id << ", " << label << ")";
   NOTIMPLEMENTED();
 }
 
 void UserMediaClientImpl::OnDeviceOpenFailed(int request_id) {
   DVLOG(1) << "UserMediaClientImpl::VideoDeviceOpenFailed("
            << request_id << ")";
   NOTIMPLEMENTED();
 }
 
-// TODO(guidou): Remove once this method is removed from the
-// MediaStreamDispatcherEventHandler interface. http://648183.
-void UserMediaClientImpl::OnDevicesChanged() {
-  NOTREACHED();
-}
-
 void UserMediaClientImpl::DevicesChanged(
     MediaDeviceType type,
     const MediaDeviceInfoArray& device_infos) {
   if (!media_device_change_observer_.isNull())
     media_device_change_observer_.didChangeMediaDevices();
 }
 
 void UserMediaClientImpl::GetUserMediaRequestSucceeded(
     const blink::WebMediaStream& stream,
     blink::WebUserMediaRequest request_info) {
@@ skipping 338 matching lines @@
 
 bool UserMediaClientImpl::UserMediaRequestInfo::HasPendingSources() const {
   return !sources_waiting_for_callback_.empty();
 }
 
 void UserMediaClientImpl::OnDestruct() {
   delete this;
 }
 
 }  // namespace content