MacViews: Initial skeleton for implementing NativeWidgetMac

ui/views/widget/native_widget_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_VIEWS_WIDGET_NATIVE_WIDGET_MAC_H_
 #define UI_VIEWS_WIDGET_NATIVE_WIDGET_MAC_H_
 
-#include "base/mac/scoped_nsobject.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/views/widget/native_widget_private.h"
 
 namespace views {
 
+class BridgedNativeWidget;
+
 class VIEWS_EXPORT NativeWidgetMac : public internal::NativeWidgetPrivate {
  public:
   NativeWidgetMac(internal::NativeWidgetDelegate* delegate);
   virtual ~NativeWidgetMac();
 
  protected:
   // internal::NativeWidgetPrivate:
   virtual void InitNativeWidget(const Widget::InitParams& params) OVERRIDE;
   virtual NonClientFrameView* CreateNonClientFrameView() OVERRIDE;
   virtual bool ShouldUseNativeFrame() const OVERRIDE;
@@ skipping 74 matching lines @@
       Widget::MoveLoopSource source,
       Widget::MoveLoopEscapeBehavior escape_behavior) OVERRIDE;
   virtual void EndMoveLoop() OVERRIDE;
   virtual void SetVisibilityChangedAnimationsEnabled(bool value) OVERRIDE;
   virtual ui::NativeTheme* GetNativeTheme() const OVERRIDE;
   virtual void OnRootViewLayout() const OVERRIDE;
   virtual void RepostNativeEvent(gfx::NativeEvent native_event) OVERRIDE;
 
  private:
   internal::NativeWidgetDelegate* delegate_;
-  base::scoped_nsobject<NSWindow> window_;
+  scoped_ptr<BridgedNativeWidget> bridge_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeWidgetMac);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_NATIVE_WIDGET_MAC_H_