Move root_window_host* in aura to window_tree_host*.

ui/aura/root_window_host_mac.h

Index: ui/aura/root_window_host_mac.h
diff --git a/ui/aura/root_window_host_mac.h b/ui/aura/root_window_host_mac.h
deleted file mode 100644
index 7cbf0829a8b20a39dd45f808b8a9fa9a5fcae25f..0000000000000000000000000000000000000000
--- a/ui/aura/root_window_host_mac.h
+++ /dev/null
@@ -1,63 +0,0 @@
-// 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 WindowTreeHostMac : public WindowTreeHost {
- public:
-  explicit WindowTreeHostMac(const gfx::Rect& bounds);
-  virtual ~WindowTreeHostMac();
-
- private:
-  // 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(WindowTreeHostMac);
-};
-
-}  // namespace aura
-
-#endif  // UI_AURA_ROOT_WINDOW_HOST_MAC_H_