Remove #pragma once from chrome/browser/{printing,safe_browsing,prefs,bookmarks,autocomplete}

chrome/browser/bookmarks/bookmark_drop_info.h

 // Copyright (c) 2006-2008 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 CHROME_BROWSER_BOOKMARKS_BOOKMARK_DROP_INFO_H_
 #define CHROME_BROWSER_BOOKMARKS_BOOKMARK_DROP_INFO_H_
-#pragma once
 
 #include "base/basictypes.h"
 #include "base/timer.h"
 #include "chrome/browser/bookmarks/bookmark_node_data.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace views {
 class DropTargetEvent;
 }
 
@@ skipping 59 matching lines @@
   // When autoscrolling this determines if we're scrolling up or down.
   bool scroll_up_;
 
   // Used when autoscrolling.
   base::RepeatingTimer<BookmarkDropInfo> scroll_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(BookmarkDropInfo);
 };
 
 #endif  // CHROME_BROWSER_BOOKMARKS_BOOKMARK_DROP_INFO_H_