Adds first cut implementation of a private key store abstraction for openssl

net/base/keygen_handler_openssl.cc

 // Copyright (c) 2010 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 "net/base/keygen_handler.h"
 
 #include <openssl/ssl.h>
 
 #include "base/crypto/rsa_private_key.h"
 #include "base/logging.h"
 #include "base/openssl_util.h"
 #include "base/scoped_ptr.h"
+#include "net/base/openssl_private_key_store.h"
 
 namespace net {
 
 std::string KeygenHandler::GenKeyAndSignChallenge() {
   scoped_ptr<base::RSAPrivateKey> key(
       base::RSAPrivateKey::Create(key_size_in_bits_));
   EVP_PKEY* pkey = key->key();
 
-  if (stores_key_) {
-    // TODO(joth): Add an abstraction for persisting OpenSSL private keys.
-    // See http://crbug.com/64917
-    NOTIMPLEMENTED();
-  }
+  if (stores_key_)
+    OpenSSLPrivateKeyStore::GetInstance()->StorePrivateKey(url_, pkey);
 
   base::ScopedOpenSSL<NETSCAPE_SPKI, NETSCAPE_SPKI_free> spki(
        NETSCAPE_SPKI_new());
   ASN1_STRING_set(spki.get()->spkac->challenge,
                   challenge_.data(), challenge_.size());
   NETSCAPE_SPKI_set_pubkey(spki.get(), pkey);
   // Using MD5 as this is what is required in HTML5, even though the SPKI
   // structure does allow the use of a SHA-1 signature.
   NETSCAPE_SPKI_sign(spki.get(), pkey, EVP_md5());
   char* spkistr = NETSCAPE_SPKI_b64_encode(spki.get());
 
   std::string result(spkistr);
   OPENSSL_free(spkistr);
 
   return result;
 }
 
 }  // namespace net