Remove shaped desktop support from remoting host and client.

remoting/host/desktop_shape_tracker.h

-// Copyright 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 REMOTING_HOST_DESKTOP_SHAPE_TRACKER_H_
-#define REMOTING_HOST_DESKTOP_SHAPE_TRACKER_H_
-
-#include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-
-namespace webrtc {
-class DesktopCaptureOptions;
-class DesktopRegion;
-}  // namespace webrtc
-
-namespace remoting {
-
-// Tracks changes in the area of the desktop that is occupied by windows.
-class DesktopShapeTracker {
- public:
-  static scoped_ptr<DesktopShapeTracker> Create(
-      webrtc::DesktopCaptureOptions options);
-
-  DesktopShapeTracker() {}
-  virtual ~DesktopShapeTracker() {}
-
-  // Recalculates the desktop shape, as returned by desktop_shape();
-  virtual void RefreshDesktopShape() = 0;
-
-  // Returns a reference to the most recently capture desktop shape.
-  virtual const webrtc::DesktopRegion& desktop_shape() = 0;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(DesktopShapeTracker);
-};
-
-}  // namespace remoting
-
-#endif  // REMOTING_HOST_DESKTOP_SHAPE_TRACKER_H_