Implement cursor compositing mode on Ash

ash/display/mirror_window_controller.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 ASH_DISPLAY_MIRROR_WINDOW_CONTROLLER_H_
 #define ASH_DISPLAY_MIRROR_WINDOW_CONTROLLER_H_
 
 #include "ash/ash_export.h"
+#include "ash/display/cursor_window_controller.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/aura/root_window_observer.h"
 #include "ui/gfx/display.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/point.h"
 #include "ui/gfx/size.h"
 
 namespace aura {
 class RootWindow;
 class RootWindowTransformer;
 class Window;
 }
 
 namespace ui {
 class Reflector;
 }
 
 namespace ash {
 namespace test{
 class MirrorWindowTestApi;
 }
 
 namespace internal {
 class DisplayInfo;
-class CursorWindowDelegate;
 
 // An object that copies the content of the primary root window to a
 // mirror window. This also draws a mouse cursor as the mouse cursor
 // is typically drawn by the window system.
-class ASH_EXPORT MirrorWindowController : public aura::RootWindowObserver {
+class ASH_EXPORT MirrorWindowController : public aura::RootWindowObserver,
+                                          public CursorWindowController {
  public:
   MirrorWindowController();
   virtual ~MirrorWindowController();
 
   // Updates the root window's bounds using |display_info|.
   // Creates the new root window if one doesn't exist.
   void UpdateWindow(const DisplayInfo& display_info);
 
   // Same as above, but using existing display info
   // for the mirrored display.
   void UpdateWindow();
 
   // Close the mirror window.
   void Close();
 
-  // Updates the mirrored cursor location,shape and
-  // visibility.
-  void UpdateCursorLocation();
-  void SetMirroredCursor(gfx::NativeCursor cursor);
-  void SetMirroredCursorVisibility(bool visible);
-
   // aura::RootWindowObserver overrides:
   virtual void OnWindowTreeHostResized(const aura::RootWindow* root) OVERRIDE;
 
  private:
   friend class test::MirrorWindowTestApi;
 
   // Creates a RootWindowTransformer for current display
   // configuration.
   scoped_ptr<aura::RootWindowTransformer> CreateRootWindowTransformer() const;
 
-  int current_cursor_type_;
-  gfx::Display::Rotation current_cursor_rotation_;
-  aura::Window* cursor_window_;  // owned by root window.
   scoped_ptr<aura::RootWindow> root_window_;
-  scoped_ptr<CursorWindowDelegate> cursor_window_delegate_;
-  gfx::Point hot_point_;
   gfx::Size mirror_window_host_size_;
   scoped_refptr<ui::Reflector> reflector_;
 
   DISALLOW_COPY_AND_ASSIGN(MirrorWindowController);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_DISPLAY_MIRROR_WINDOW_CONTROLLER_H_