Cleanup: IWYU for base/gtest_prod_util.h.

ui/message_center/views/notification_view.h

 // Copyright (c) 2012 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_MESSAGE_CENTER_VIEWS_NOTIFICATION_VIEW_H_
 #define UI_MESSAGE_CENTER_VIEWS_NOTIFICATION_VIEW_H_
 
 #include <vector>
 
+#include "base/gtest_prod_util.h"
 #include "ui/message_center/message_center_export.h"
 #include "ui/message_center/views/message_view.h"
 #include "ui/views/view_targeter_delegate.h"
 
 class GURL;
 
 namespace views {
 class ProgressBar;
 }
 
@@ skipping 105 matching lines @@
   ProportionalImageView* image_view_;
   views::ProgressBar* progress_bar_view_;
   std::vector<NotificationButton*> action_buttons_;
   std::vector<views::View*> separators_;
 
   DISALLOW_COPY_AND_ASSIGN(NotificationView);
 };
 
 }  // namespace message_center
 
-#endif // UI_MESSAGE_CENTER_VIEWS_NOTIFICATION_VIEW_H_
+#endif  // UI_MESSAGE_CENTER_VIEWS_NOTIFICATION_VIEW_H_