Remove #pragma once from chrome/browser/sync

chrome/browser/sync/glue/history_model_worker.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_SYNC_GLUE_HISTORY_MODEL_WORKER_H_
 #define CHROME_BROWSER_SYNC_GLUE_HISTORY_MODEL_WORKER_H_
-#pragma once
 
 #include "sync/internal_api/public/engine/model_safe_worker.h"
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/cancelable_request.h"
 
 class HistoryService;
@@ skipping 17 matching lines @@
   scoped_refptr<HistoryService> history_service_;
   // Helper object to make sure we don't leave tasks running on the history
   // thread.
   CancelableRequestConsumerT<int, 0> cancelable_consumer_;
   DISALLOW_COPY_AND_ASSIGN(HistoryModelWorker);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_GLUE_HISTORY_MODEL_WORKER_H_