Clean up header files.

chrome/common/net/x509_certificate_model_openssl.cc

 // 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.
 
 #include "chrome/common/net/x509_certificate_model.h"
 
+#include <limits.h>
 #include <openssl/mem.h>
 #include <openssl/obj_mac.h>
 #include <openssl/sha.h>
 #include <openssl/stack.h>
 #include <openssl/x509.h>
 #include <openssl/x509v3.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/i18n/number_formatting.h"
@@ skipping 1191 matching lines @@
       return rv;
   }
 }
 
 std::string ProcessRawBitsSignatureWrap(
     net::X509Certificate::OSCertHandle cert_handle) {
   return ProcessRawAsn1String(cert_handle->signature);
 }
 
 }  // namespace x509_certificate_model