views: Move widget/ directory to ui/views.

ui/views/examples/widget_example.cc

 // 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.
 
 #include "ui/views/examples/widget_example.h"
 
 #include "base/utf_string_conversions.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/layout/layout_manager.h"
+#include "ui/views/widget/widget.h"
 #include "views/controls/button/text_button.h"
 #include "views/view.h"
-#include "views/widget/widget.h"
 
 namespace {
 
 // A layout manager that layouts a single child at
 // the center of the host view.
 class CenterLayout : public views::LayoutManager {
  public:
   CenterLayout() {}
   virtual ~CenterLayout() {}
 
@@ skipping 137 matching lines @@
       CreateChild(sender, true);
       break;
 #endif
     case CLOSE_WIDGET:
       sender->GetWidget()->Close();
       break;
   }
 }
 
 }  // namespace examples