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

chrome/browser/bookmarks/bookmark_html_writer.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 CHROME_BROWSER_BOOKMARKS_BOOKMARK_HTML_WRITER_H_
 #define CHROME_BROWSER_BOOKMARKS_BOOKMARK_HTML_WRITER_H_
-#pragma once
 
 #include <list>
 #include <map>
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/history/history.h"
 #include "content/public/browser/notification_registrar.h"
 #include "net/base/file_stream.h"
 
@@ skipping 80 matching lines @@
 // thread is used.
 // Before writing to the file favicons are fetched on the main thread.
 // TODO(sky): need a callback on failure.
 void WriteBookmarks(Profile* profile,
                     const FilePath& path,
                     BookmarksExportObserver* observer);
 
 }  // namespace bookmark_html_writer
 
 #endif  // CHROME_BROWSER_BOOKMARKS_BOOKMARK_HTML_WRITER_H_