views: Move widget/ directory to ui/views.

ui/views/widget/drop_helper.h

Index: ui/views/widget/drop_helper.h
diff --git a/views/widget/drop_helper.h b/ui/views/widget/drop_helper.h
similarity index 95%
rename from views/widget/drop_helper.h
rename to ui/views/widget/drop_helper.h
index cc62bfc657bb50faaaaafeb9872ea6b5c4e8cc41..38627d39eefcf63f52ba919c4cf28b1cfbd538d8 100644
--- a/views/widget/drop_helper.h
+++ b/ui/views/widget/drop_helper.h
@@ -1,9 +1,9 @@
-// Copyright (c) 2006-2008 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_DROP_HELPER_H_
-#define VIEWS_WIDGET_DROP_HELPER_H_
+#ifndef UI_VIEWS_WIDGET_DROP_HELPER_H_
+#define UI_VIEWS_WIDGET_DROP_HELPER_H_
 #pragma once
 
 #include "base/basictypes.h"
@@ -105,4 +105,4 @@ class DropHelper {
 
 }  // namespace views
 
-#endif  // VIEWS_WIDGET_DROP_HELPER_H_
+#endif  // UI_VIEWS_WIDGET_DROP_HELPER_H_