Remove #pragma once from content

content/common/ssl_status_serialization.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_COMMON_SSL_STATUS_SERIALIZATION_H_
 #define CONTENT_COMMON_SSL_STATUS_SERIALIZATION_H_
-#pragma once
 
 #include <string>
 
 #include "net/base/cert_status_flags.h"
 
 namespace content {
 
 // Convenience methods for serializing/deserializing the security info.
 std::string SerializeSecurityInfo(int cert_id,
                                   net::CertStatus cert_status,
                                   int security_bits,
                                   int connection_status);
 
 bool DeserializeSecurityInfo(const std::string& state,
                              int* cert_id,
                              net::CertStatus* cert_status,
                              int* security_bits,
                              int* connection_status);
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_SSL_STATUS_SERIALIZATION_H_