Rename RootWindowHost to WindowTreeHost

ui/aura/root_window_host_mac.h

 // Copyright 2014 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 UI_AURA_ROOT_WINDOW_HOST_MAC_H_
 #define UI_AURA_ROOT_WINDOW_HOST_MAC_H_
 
 #include <vector>
 
 #include "base/mac/scoped_nsobject.h"
 #include "ui/aura/aura_export.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/gfx/insets.h"
 #include "ui/gfx/rect.h"
 
 namespace ui {
 class MouseEvent;
 }
 
 namespace aura {
 
 namespace internal {
 class TouchEventCalibrate;
 }
 
-class AURA_EXPORT RootWindowHostMac : public RootWindowHost {
+class AURA_EXPORT WindowTreeHostMac : public WindowTreeHost {
  public:
-  explicit RootWindowHostMac(const gfx::Rect& bounds);
-  virtual ~RootWindowHostMac();
+  explicit WindowTreeHostMac(const gfx::Rect& bounds);
+  virtual ~WindowTreeHostMac();
 
  private:
-  // RootWindowHost Overrides.
+  // WindowTreeHost Overrides.
   virtual RootWindow* GetRootWindow() OVERRIDE;
   virtual gfx::AcceleratedWidget GetAcceleratedWidget() OVERRIDE;
   virtual void Show() OVERRIDE;
   virtual void Hide() OVERRIDE;
   virtual void ToggleFullScreen() OVERRIDE;
   virtual gfx::Rect GetBounds() const OVERRIDE;
   virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE;
   virtual gfx::Insets GetInsets() const OVERRIDE;
   virtual void SetInsets(const gfx::Insets& insets) OVERRIDE;
   virtual gfx::Point GetLocationOnNativeScreen() const OVERRIDE;
   virtual void SetCapture() OVERRIDE;
   virtual void ReleaseCapture() OVERRIDE;
   virtual void SetCursor(gfx::NativeCursor cursor_type) OVERRIDE;
   virtual bool QueryMouseLocation(gfx::Point* location_return) OVERRIDE;
   virtual bool ConfineCursorToRootWindow() OVERRIDE;
   virtual void UnConfineCursor() OVERRIDE;
   virtual void OnCursorVisibilityChanged(bool show) OVERRIDE;
   virtual void MoveCursorTo(const gfx::Point& location) OVERRIDE;
   virtual void PostNativeEvent(const base::NativeEvent& event) OVERRIDE;
   virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE;
   virtual void PrepareForShutdown() OVERRIDE;
 
  private:
   base::scoped_nsobject<NSWindow> window_;
 
-  DISALLOW_COPY_AND_ASSIGN(RootWindowHostMac);
+  DISALLOW_COPY_AND_ASSIGN(WindowTreeHostMac);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_ROOT_WINDOW_HOST_MAC_H_