Move classses VideoCaptureDeviceClient and VideoCaptureBufferPool to media/capture/video

media/capture/video/video_capture_buffer_tracker_factory.h

+// Copyright (c) 2013 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 MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_BUFFER_TRACKER_FACTORY_H_
+#define MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_BUFFER_TRACKER_FACTORY_H_
+
+#include <memory>
+
+#include "media/base/video_capture_types.h"
+#include "media/capture/capture_export.h"
+
+namespace media {
+
+class VideoCaptureBufferTracker;
+
+class CAPTURE_EXPORT VideoCaptureBufferTrackerFactory {
+ public:
+  virtual ~VideoCaptureBufferTrackerFactory() {}
+  virtual std::unique_ptr<VideoCaptureBufferTracker> CreateTracker(
+      VideoPixelStorage storage_type) = 0;
+};
+
+}  // namespace media
+
+#endif  // MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_BUFFER_TRACKER_FACTORY_H_