Reland of Add support for device-change notifications to MediaStreamDispatcher

content/renderer/pepper/pepper_media_device_manager.h

 // 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.
 
 #ifndef CONTENT_RENDERER_PEPPER_PEPPER_MEDIA_DEVICE_MANAGER_H_
 #define CONTENT_RENDERER_PEPPER_PEPPER_MEDIA_DEVICE_MANAGER_H_
 
 #include <map>
 
 #include "base/macros.h"
@@ skipping 54 matching lines @@
       int request_id,
       content::MediaStreamRequestResult result) override;
   void OnDeviceStopped(const std::string& label,
                        const StreamDeviceInfo& device_info) override;
   void OnDevicesEnumerated(int request_id,
                            const StreamDeviceInfoArray& device_array) override;
   void OnDeviceOpened(int request_id,
                       const std::string& label,
                       const StreamDeviceInfo& device_info) override;
   void OnDeviceOpenFailed(int request_id) override;
+  void OnDevicesChanged() override;
 
   // Stream type conversion.
   static MediaStreamType FromPepperDeviceType(PP_DeviceType_Dev type);
   static PP_DeviceType_Dev FromMediaStreamType(MediaStreamType type);
 
  private:
   explicit PepperMediaDeviceManager(RenderFrame* render_frame);
 
   // Called by StopEnumerateDevices() after returing to the event loop, to avoid
   // a reentrancy problem.
@@ skipping 13 matching lines @@
 
   typedef std::map<int, OpenDeviceCallback> OpenCallbackMap;
   OpenCallbackMap open_callbacks_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperMediaDeviceManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PEPPER_PEPPER_MEDIA_DEVICE_MANAGER_H_