Replace EVP_PKEY_dup calls with EVP_PKEY_up_ref.

crypto/ec_private_key_openssl.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 "crypto/ec_private_key.h"
 
 #include <openssl/ec.h>
 #include <openssl/evp.h>
 #include <openssl/pkcs12.h>
 #include <openssl/x509.h>
@@ skipping 70 matching lines @@
 }  // namespace
 
 ECPrivateKey::~ECPrivateKey() {
   if (key_)
     EVP_PKEY_free(key_);
 }
 
 ECPrivateKey* ECPrivateKey::Copy() const {
   scoped_ptr<ECPrivateKey> copy(new ECPrivateKey);
   if (key_)
-    copy->key_ = EVP_PKEY_dup(key_);
+    copy->key_ = EVP_PKEY_up_ref(key_);
   return copy.release();
 }
 
 // static
 bool ECPrivateKey::IsSupported() { return true; }
 
 // static
 ECPrivateKey* ECPrivateKey::Create() {
   OpenSSLErrStackTracer err_tracer(FROM_HERE);
 
@@ skipping 127 matching lines @@
   OpenSSLErrStackTracer err_tracer(FROM_HERE);
   ScopedEC_KEY ec_key(EVP_PKEY_get1_EC_KEY(key_));
   return ExportKey(ec_key.get(),
                    reinterpret_cast<ExportDataFunction>(i2d_ECParameters),
                    output);
 }
 
 ECPrivateKey::ECPrivateKey() : key_(NULL) {}
 
 }  // namespace crypto