Reimplements net::AddressList without struct addrinfo.

net/http/http_network_transaction_spdy2_unittest.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 "net/http/http_network_transaction.h"
 
 #include <math.h>  // ceil
 #include <stdarg.h>
 #include <string>
 #include <vector>
@@ skipping 9225 matching lines @@
                                   BoundNetLog());
   if (rv == ERR_IO_PENDING)
     rv = callback.WaitForResult();
   DCHECK_EQ(OK, rv);
 
   // Add the first address as an alias. It would have been better to call
   // MockClientSocket::GetPeerAddress but that returns 192.0.2.33 whereas
   // MockHostResolver returns 127.0.0.1 (MockHostResolverBase::Reset). So we use
   // the first address (127.0.0.1) returned by MockHostResolver as an alias for
   // the |pair|.
-  const addrinfo* address = addresses.head();
-  pool_peer->AddAlias(address, pair);
+  pool_peer->AddAlias(addresses.front(), pair);
 }
 
 }  // namespace
 
 TEST_F(HttpNetworkTransactionSpdy2Test, FLAKY_UseIPConnectionPooling) {
   HttpStreamFactory::set_use_alternate_protocols(true);
   HttpStreamFactory::SetNextProtos(SpdyNextProtos());
 
   // Set up a special HttpNetworkSession with a MockCachingHostResolver.
   SessionDependencies session_deps;
@@ skipping 292 matching lines @@
   StaticSocketDataProvider* data[] = { &data1, &data2 };
 
   SimpleGetHelperResult out = SimpleGetHelperForData(data, arraysize(data));
 
   EXPECT_EQ(OK, out.rv);
   EXPECT_EQ("HTTP/1.0 200 OK", out.status_line);
   EXPECT_EQ("hello world", out.response_data);
 }
 
 }  // namespace net