Revert "Add VideoCaptureImpl and VideoCaptureImplManager"

content/renderer/media/video_capture_impl_manager.h

-// Copyright (c) 2011 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.
-
-// VideoCaptureImplManager manages video capture devices in renderer process.
-// The video capture clients use AddDevice() to get a pointer to
-// video capture device. VideoCaputreImplManager supports multiple clients
-// accessing same device.
-
-#ifndef CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_IMPL_MANAGER_H_
-#define CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_IMPL_MANAGER_H_
-
-#include <list>
-#include <map>
-
-#include "base/message_loop_proxy.h"
-#include "base/synchronization/lock.h"
-#include "content/renderer/media/video_capture_impl.h"
-#include "content/renderer/video_capture_message_filter.h"
-#include "media/base/callback.h"
-#include "media/base/message_loop_factory.h"
-#include "media/video/capture/video_capture.h"
-
-class VideoCaptureImplManager {
- public:
-  VideoCaptureImplManager();
-  ~VideoCaptureImplManager();
-
-  // Called by video capture client |handler| to add device referenced
-  // by |id| to VideoCaptureImplManager's list of opened device list.
-  // A pointer to VideoCapture is returned to client so that client can
-  // operate on that pointer, such as StartCaptrue, StopCapture.
-  static media::VideoCapture* AddDevice(
-      media::VideoCaptureSessionId id,
-      media::VideoCapture::EventHandler* handler);
-
-  // Called by video capture client |handler| to remove device referenced
-  // by |id| from VideoCaptureImplManager's list of opened device list.
-  static void RemoveDevice(media::VideoCaptureSessionId id,
-                           media::VideoCapture::EventHandler* handler);
-
-  static VideoCaptureImplManager* GetInstance();
-
- private:
-  struct Device {
-    Device();
-    Device(VideoCaptureImpl* device,
-           media::VideoCapture::EventHandler* handler);
-    ~Device();
-
-    VideoCaptureImpl* vc;
-    std::list<media::VideoCapture::EventHandler*> clients;
-  };
-
-  void FreeDevice(VideoCaptureImpl* vc);
-
-  typedef std::map<media::VideoCaptureSessionId, Device> Devices;
-  Devices devices_;
-  base::Lock lock_;
-  scoped_refptr<base::MessageLoopProxy> ml_proxy_;
-  scoped_ptr<media::MessageLoopFactory> ml_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(VideoCaptureImplManager);
-};
-
-DISABLE_RUNNABLE_METHOD_REFCOUNT(VideoCaptureImplManager);
-
-#endif  // CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_IMPL_MANAGER_H_