Add VideoStream interface.

remoting/host/mouse_clamping_filter.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 REMOTING_HOST_MOUSE_CLAMPING_FILTER_H_
-#define REMOTING_HOST_MOUSE_CLAMPING_FILTER_H_
-
-#include "base/compiler_specific.h"
-#include "remoting/protocol/mouse_input_filter.h"
-#include "remoting/protocol/video_stub.h"
-
-namespace remoting {
-
-// Filtering VideoStub implementation which configures a MouseInputFilter to
-// clamp mouse events to fall within the dimensions of the most-recently
-// received video frame.
-class MouseClampingFilter : public protocol::VideoStub {
- public:
-  explicit MouseClampingFilter(protocol::InputStub* input_stub);
-  ~MouseClampingFilter() override;
-
-  protocol::InputStub* input_filter() { return &input_filter_; }
-
-  void set_video_stub(protocol::VideoStub* video_stub) {
-    video_stub_ = video_stub;
-  }
-
-  // protocol::VideoStub implementation.
-  void ProcessVideoPacket(scoped_ptr<VideoPacket> video_packet,
-                          const base::Closure& done) override;
-
- private:
-  // Clamps mouse event coordinates to the video dimensions.
-  protocol::MouseInputFilter input_filter_;
-
-  protocol::VideoStub* video_stub_;
-
-  DISALLOW_COPY_AND_ASSIGN(MouseClampingFilter);
-};
-
-}  // namespace remoting
-
-#endif  // REMOTING_HOST_MOUSE_CLAMPING_FILTER_H_