getUserMeida: report device starting states

content/browser/renderer_host/media/video_capture_host.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_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_HOST_H_
 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_HOST_H_
 
 #include <map>
 
 #include "base/macros.h"
@@ skipping 33 matching lines @@
                        mojo::ScopedSharedBufferHandle handle,
                        int length,
                        int buffer_id) override;
   void OnBufferDestroyed(VideoCaptureControllerID id,
                          int buffer_id) override;
   void OnBufferReady(
       VideoCaptureControllerID id,
       int buffer_id,
       const media::mojom::VideoFrameInfoPtr& frame_info) override;
   void OnEnded(VideoCaptureControllerID id) override;
+  void OnStarted(VideoCaptureControllerID id) override;
 
   // mojom::VideoCaptureHost implementation
   void Start(int32_t device_id,
              int32_t session_id,
              const media::VideoCaptureParams& params,
              mojom::VideoCaptureObserverPtr observer) override;
   void Stop(int32_t device_id) override;
   void Pause(int32_t device_id) override;
   void Resume(int32_t device_id,
               int32_t session_id,
@@ skipping 38 matching lines @@
   std::map<int32_t, mojom::VideoCaptureObserverPtr> device_id_to_observer_map_;
 
   base::WeakPtrFactory<VideoCaptureHost> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoCaptureHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_HOST_H_