Remove #pragma once from content

content/browser/cert_store_impl.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_CERT_STORE_IMPL_H_
 #define CONTENT_BROWSER_CERT_STORE_IMPL_H_
-#pragma once
 
 #include <map>
 
 #include "base/memory/singleton.h"
 #include "base/synchronization/lock.h"
 #include "content/public/browser/cert_store.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "net/base/x509_certificate.h"
 
@@ skipping 46 matching lines @@
   int next_cert_id_;
 
   // This lock protects: process_to_ids_, id_to_processes_, id_to_cert_ and
   //                     cert_to_id_.
   base::Lock cert_lock_;
 
   DISALLOW_COPY_AND_ASSIGN(CertStoreImpl);
 };
 
 #endif  // CONTENT_BROWSER_CERT_STORE_IMPL_H_