Remove #pragma once from sync

sync/engine/verify_updates_command.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 SYNC_ENGINE_VERIFY_UPDATES_COMMAND_H_
 #define SYNC_ENGINE_VERIFY_UPDATES_COMMAND_H_
-#pragma once
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "sync/engine/model_changing_syncer_command.h"
 #include "sync/engine/syncer_types.h"
 #include "sync/engine/syncproto.h"
 #include "sync/internal_api/public/engine/model_safe_worker.h"
 
 namespace syncer {
 
@@ skipping 23 matching lines @@
   VerifyUpdateResult VerifyUpdate(syncable::WriteTransaction* trans,
                                   const SyncEntity& entry,
                                   const syncer::ModelTypeSet& requested_types,
                                   const ModelSafeRoutingInfo& routes);
   DISALLOW_COPY_AND_ASSIGN(VerifyUpdatesCommand);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_ENGINE_VERIFY_UPDATES_COMMAND_H_