views: Move widget/ directory to ui/views.

ui/views/widget/child_window_message_processor.h

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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_CHILD_WINDOW_MESSAGE_PROCESSOR_H_
-#define VIEWS_WIDGET_CHILD_WINDOW_MESSAGE_PROCESSOR_H_
+#ifndef UI_VIEWS_WIDGET_CHILD_WINDOW_MESSAGE_PROCESSOR_H_
+#define UI_VIEWS_WIDGET_CHILD_WINDOW_MESSAGE_PROCESSOR_H_
 #pragma once
 
 #include <windows.h>
 
 namespace ui {
 class ViewProp;
 }
 
 namespace views {
 
@@ skipping 21 matching lines @@
                               WPARAM w_param,
                               LPARAM l_param,
                               LRESULT* result) = 0;
 
  protected:
   virtual ~ChildWindowMessageProcessor() {}
 };
 
 }  // namespace views
 
-#endif // VIEWS_WIDGET_CHILD_WINDOW_MESSAGE_PROCESSOR_H_
+#endif  // UI_VIEWS_WIDGET_CHILD_WINDOW_MESSAGE_PROCESSOR_H_