views: Move widget/ directory to ui/views.

ui/views/examples/widget_example.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 UI_VIEWS_EXAMPLES_WIDGET_EXAMPLE_H_
 #define UI_VIEWS_EXAMPLES_WIDGET_EXAMPLE_H_
 #pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "ui/views/examples/example_base.h"
+#include "ui/views/widget/widget.h"
 #include "views/controls/button/text_button.h"
-#include "views/widget/widget.h"
 
 namespace examples {
 
 // WidgetExample demonstrates how to create a popup widget.
 class WidgetExample : public ExampleBase, public views::ButtonListener {
  public:
   explicit WidgetExample(ExamplesMain* main);
   virtual ~WidgetExample();
 
   // Overridden from ExampleBase:
@@ skipping 21 matching lines @@
   // Overridden from views::ButtonListener:
   virtual void ButtonPressed(views::Button* sender,
                              const views::Event& event) OVERRIDE;
 
   DISALLOW_COPY_AND_ASSIGN(WidgetExample);
 };
 
 }  // namespace examples
 
 #endif  // UI_VIEWS_EXAMPLES_WIDGET_EXAMPLE_H_