Remove #pragma once from content

content/browser/worker_host/worker_process_host.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 CONTENT_BROWSER_WORKER_HOST_WORKER_PROCESS_HOST_H_
 #define CONTENT_BROWSER_WORKER_HOST_WORKER_PROCESS_HOST_H_
-#pragma once
 
 #include <list>
 #include <utility>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/common/content_export.h"
 #include "content/browser/worker_host/worker_document_set.h"
 #include "content/public/browser/browser_child_process_host_delegate.h"
@@ skipping 192 matching lines @@
 class WorkerProcessHostIterator
     : public content::BrowserChildProcessHostTypeIterator<WorkerProcessHost> {
  public:
   WorkerProcessHostIterator()
       : content::BrowserChildProcessHostTypeIterator<WorkerProcessHost>(
           content::PROCESS_TYPE_WORKER) {
   }
 };
 
 #endif  // CONTENT_BROWSER_WORKER_HOST_WORKER_PROCESS_HOST_H_