RSAPrivateKey vector push_back cleanups.

crypto/rsa_private_key_nss.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 "crypto/rsa_private_key.h"
 
 #include <cryptohi.h>
 #include <keyhi.h>
 #include <pk11pub.h>
 #include <secmod.h>
@@ skipping 150 matching lines @@
   return private_key_info.Export(output);
 }
 
 bool RSAPrivateKey::ExportPublicKey(std::vector<uint8>* output) {
   ScopedSECItem der_pubkey(SECKEY_EncodeDERSubjectPublicKeyInfo(public_key_));
   if (!der_pubkey.get()) {
     NOTREACHED();
     return false;
   }
 
-  for (size_t i = 0; i < der_pubkey->len; ++i)
-    output->push_back(der_pubkey->data[i]);
-
+  output->assign(der_pubkey->data, der_pubkey->data + der_pubkey->len);
   return true;
 }
 
 RSAPrivateKey::RSAPrivateKey() : key_(NULL), public_key_(NULL) {
   EnsureNSSInit();
 }
 
 // static
 RSAPrivateKey* RSAPrivateKey::CreateWithParams(uint16 num_bits,
                                                bool permanent,
@@ skipping 54 matching lines @@
   result->public_key_ = SECKEY_ConvertToPublicKey(result->key_);
   if (!result->public_key_) {
     NOTREACHED();
     return NULL;
   }
 
   return result.release();
 }
 
 }  // namespace crypto