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

chrome/browser/bookmarks/bookmark_service.h

 // Copyright (c) 2010 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_SERVICE_H_
 #define CHROME_BROWSER_BOOKMARKS_BOOKMARK_SERVICE_H_
-#pragma once
 
 #include <vector>
 
 class GURL;
 
 // BookmarkService provides a thread safe view of bookmarks. It is used by
 // HistoryBackend when it needs to determine the set of bookmarked URLs
 // or if a URL is bookmarked.
 //
 // BookmarkService is owned by Profile and deleted when the Profile is deleted.
@@ skipping 13 matching lines @@
 
   // Blocks until loaded. This is intended for usage on a thread other than
   // the main thread.
   virtual void BlockTillLoaded() = 0;
 
  protected:
   virtual ~BookmarkService() {}
 };
 
 #endif  // CHROME_BROWSER_BOOKMARKS_BOOKMARK_SERVICE_H_