Make VideoCaptureController single-threaded and not ref counted.

media/video/capture/win/video_capture_device_mf_win.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.
 
 // Windows specific implementation of VideoCaptureDevice.
 // DirectShow is used for capturing. DirectShow provide its own threads
 // for capturing.
 
 #ifndef MEDIA_VIDEO_CAPTURE_WIN_VIDEO_CAPTURE_DEVICE_MF_WIN_H_
 #define MEDIA_VIDEO_CAPTURE_WIN_VIDEO_CAPTURE_DEVICE_MF_WIN_H_
@@ skipping 10 matching lines @@
 #include "media/video/capture/video_capture_device.h"
 
 interface IMFSourceReader;
 
 namespace media {
 
 class MFReaderCallback;
 
 class MEDIA_EXPORT VideoCaptureDeviceMFWin
     : public base::NonThreadSafe,
-      public VideoCaptureDevice {
+      public VideoCaptureDevice1 {
  public:
   explicit VideoCaptureDeviceMFWin(const Name& device_name);
   virtual ~VideoCaptureDeviceMFWin();
 
   // Opens the device driver for this device.
   // This function is used by the static VideoCaptureDevice::Create function.
   bool Init();
 
   // VideoCaptureDevice implementation.
   virtual void Allocate(const VideoCaptureCapability& capture_format,
@@ skipping 32 matching lines @@
   VideoCaptureDevice::EventHandler* observer_;
   base::win::ScopedComPtr<IMFSourceReader> reader_;
   bool capture_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceMFWin);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_VIDEO_CAPTURE_WIN_VIDEO_CAPTURE_DEVICE_MF_WIN_H_