clean up code at crypto folder.

crypto/p224_spake_unittest.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 <string>
 #include <crypto/p224_spake.h>
 
 #include "base/logging.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace crypto {
 
 namespace {
 
 bool RunExchange(P224EncryptedKeyExchange* client,
                  P224EncryptedKeyExchange* server) {
-
   for (;;) {
     std::string client_message, server_message;
     client_message = client->GetMessage();
     server_message = server->GetMessage();
 
     P224EncryptedKeyExchange::Result client_result, server_result;
     client_result = client->ProcessMessage(server_message);
     server_result = server->ProcessMessage(client_message);
 
     // Check that we never hit the case where only one succeeds.
@@ skipping 94 matching lines @@
 
       ASSERT_EQ(P224EncryptedKeyExchange::kResultPending,
                 client_result);
       ASSERT_EQ(P224EncryptedKeyExchange::kResultPending,
                 server_result);
     }
   }
 }
 
 }  // namespace crypto