views: Move widget/ directory to ui/views.

ui/views/widget/native_widget.h

 // Copyright (c) 2011 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 VIEWS_WIDGET_NATIVE_WIDGET_H_
-#define VIEWS_WIDGET_NATIVE_WIDGET_H_
+#ifndef UI_VIEWS_WIDGET_NATIVE_WIDGET_H_
+#define UI_VIEWS_WIDGET_NATIVE_WIDGET_H_
 #pragma once
 
-#include "views/widget/widget.h"
+#include "ui/views/widget/widget.h"
 
 namespace views {
 namespace internal {
 class NativeWidgetPrivate;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // NativeWidget interface
 //
 //  An interface that serves as the public API base for the
 //  internal::NativeWidget interface that Widget uses to communicate with a
 //  backend-specific native widget implementation. This is the only component of
 //  this interface that is publicly visible, and exists solely for exposure via
 //  Widget's native_widget() accessor, which code occasionally static_casts to
 //  a known implementation in platform-specific code.
 //
 class VIEWS_EXPORT NativeWidget {
  public:
   virtual ~NativeWidget() {}
 
  private:
   friend class Widget;
 
   virtual internal::NativeWidgetPrivate* AsNativeWidgetPrivate() = 0;
 };
 
 }  // namespace views
 
-#endif  // VIEWS_WIDGET_NATIVE_WIDGET_H_
+#endif  // UI_VIEWS_WIDGET_NATIVE_WIDGET_H_