This adds Cellular to the Shill to ONC translation.

chromeos/network/onc/onc_certificate_importer.cc

 // 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.
 
 #include "chromeos/network/onc/onc_certificate_importer.h"
 
 #include <cert.h>
 #include <keyhi.h>
 #include <pk11pub.h>
 
@@ skipping 56 matching lines @@
   else if (successful_imports == 0)
     return IMPORT_FAILED;
   else
     return IMPORT_INCOMPLETE;
 }
 
 bool CertificateImporter::ParseAndStoreCertificate(
     const base::DictionaryValue& certificate) {
   // Get out the attributes of the given certificate.
   std::string guid;
-  if (!certificate.GetString(kGUID, &guid) || guid.empty()) {
+  if (!certificate.GetString(certificate::kGUID, &guid) || guid.empty()) {
     ONC_LOG_ERROR("Certificate missing GUID identifier");
     return false;
   }
 
   bool remove = false;
   if (certificate.GetBoolean(kRemove, &remove) && remove) {
     if (!DeleteCertAndKeyByNickname(guid)) {
       ONC_LOG_ERROR("Unable to delete certificate");
       return false;
     } else {
@@ skipping 277 matching lines @@
     PK11_SetPrivateKeyNickname(private_key, const_cast<char*>(guid.c_str()));
     SECKEY_DestroyPrivateKey(private_key);
   } else {
     ONC_LOG_WARNING("Unable to find private key for certificate.");
   }
   return true;
 }
 
 }  // namespace onc
 }  // namespace chromeos