Remove #pragma once from content

content/browser/worker_host/worker_service_impl.h

 // Copyright (c) 2011 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 CONTENT_BROWSER_WORKER_HOST_WORKER_SERVICE_H_
 #define CONTENT_BROWSER_WORKER_HOST_WORKER_SERVICE_H_
-#pragma once
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/singleton.h"
 #include "base/observer_list.h"
 #include "base/threading/non_thread_safe.h"
 #include "content/browser/worker_host/worker_process_host.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/worker_service.h"
 
@@ skipping 124 matching lines @@
   WorkerProcessHost::Instances pending_shared_workers_;
 
   ObserverList<WorkerServiceObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(WorkerServiceImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WORKER_HOST_WORKER_SERVICE_H_