Add ECPrivateKey for Elliptic Curve keypair generation.

chrome/third_party/mozilla_security_manager/nsNSSCertHelper.h

 /* ***** BEGIN LICENSE BLOCK *****
  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  *
  * The contents of this file are subject to the Mozilla Public License Version
  * 1.1 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
  * http://www.mozilla.org/MPL/
  *
  * Software distributed under the License is distributed on an "AS IS" basis,
  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
@@ skipping 30 matching lines @@
 #ifndef CHROME_THIRD_PARTY_MOZILLA_SECURITY_MANAGER_NSNSSCERTHELPER_H_
 #define CHROME_THIRD_PARTY_MOZILLA_SECURITY_MANAGER_NSNSSCERTHELPER_H_
 
 #include <cert.h>
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "net/base/cert_database.h"
 
-class FreePRArenaPool {
- public:
-  inline void operator()(PRArenaPool* x) const {
-    PORT_FreeArena(x, PR_FALSE);
-  }
-};
-typedef scoped_ptr_malloc<PRArenaPool, FreePRArenaPool> ScopedPRArenaPool;
-
 namespace mozilla_security_manager {
 
 extern SECOidTag ms_cert_ext_certtype;
 extern SECOidTag ms_certsrv_ca_version;
 extern SECOidTag ms_nt_principal_name;
 extern SECOidTag ms_ntds_replication;
 
 void RegisterDynamicOids();
 
 std::string DumpOidString(SECItem* oid);
@@ skipping 18 matching lines @@
 std::string ProcessKeyUsageExtension(SECItem* extension_data);
 std::string ProcessExtKeyUsage(SECItem* extension_data);
 std::string ProcessExtensionData(SECOidTag oid_tag, SECItem* extension_data);
 std::string ProcessSubjectPublicKeyInfo(CERTSubjectPublicKeyInfo* spki);
 
 net::CertType GetCertType(CERTCertificate *cert);
 
 }  // namespace mozilla_security_manager
 
 #endif  // CHROME_THIRD_PARTY_MOZILLA_SECURITY_MANAGER_NSNSSCERTHELPER_H_