Add support for device-change notifications to MediaStreamDispatcher and MediaStreamDispatcherHost

content/renderer/pepper/pepper_media_device_manager.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/pepper/pepper_media_device_manager.h"
 
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
@@ skipping 179 matching lines @@
     int request_id,
     const std::string& label,
     const StreamDeviceInfo& device_info) {
   NotifyDeviceOpened(request_id, true, label);
 }
 
 void PepperMediaDeviceManager::OnDeviceOpenFailed(int request_id) {
   NotifyDeviceOpened(request_id, false, std::string());
 }
 
+void PepperMediaDeviceManager::OnDevicesChanged() {}
+
 // static
 MediaStreamType PepperMediaDeviceManager::FromPepperDeviceType(
     PP_DeviceType_Dev type) {
   switch (type) {
     case PP_DEVICETYPE_DEV_INVALID:
       return MEDIA_NO_SERVICE;
     case PP_DEVICETYPE_DEV_AUDIOCAPTURE:
       return MEDIA_DEVICE_AUDIO_CAPTURE;
     case PP_DEVICETYPE_DEV_VIDEOCAPTURE:
       return MEDIA_DEVICE_VIDEO_CAPTURE;
@@ skipping 37 matching lines @@
 MediaStreamDispatcher* PepperMediaDeviceManager::GetMediaStreamDispatcher()
     const {
   DCHECK(render_frame());
   MediaStreamDispatcher* const dispatcher =
       static_cast<RenderFrameImpl*>(render_frame())->GetMediaStreamDispatcher();
   DCHECK(dispatcher);
   return dispatcher;
 }
 
 }  // namespace content