Add base::HostToNetXX() & NetToHostXX(), and use them to replace htonX() & ntohX() in Chrome.

net/dns/dns_transaction_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/dns/dns_transaction.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/rand_util.h"
+#include "base/sys_byteorder.h"
 #include "base/test/test_timeouts.h"
 #include "net/base/big_endian.h"
 #include "net/base/dns_util.h"
 #include "net/base/net_log.h"
 #include "net/base/sys_addrinfo.h"
 #include "net/dns/dns_protocol.h"
 #include "net/dns/dns_query.h"
 #include "net/dns/dns_response.h"
 #include "net/dns/dns_session.h"
 #include "net/dns/dns_test_util.h"
@@ skipping 251 matching lines @@
     CHECK_NE(dns_protocol::kRcodeNOERROR, rcode);
     uint16 id = base::RandInt(0, kuint16max);
     DnsQuery* query = new DnsQuery(id, DomainFromDot(dotted_name), qtype);
     queries_.push_back(query);
 
     DnsResponse* response = new DnsResponse(query->io_buffer()->data(),
                                             query->io_buffer()->size(),
                                             0);
     dns_protocol::Header* header =
         reinterpret_cast<dns_protocol::Header*>(response->io_buffer()->data());
-    header->flags |= htons(dns_protocol::kFlagResponse | rcode);
+    header->flags |= base::HostToNet16(dns_protocol::kFlagResponse | rcode);
     responses_.push_back(response);
 
     writes_.push_back(MockWrite(ASYNC,
                                 query->io_buffer()->data(),
                                 query->io_buffer()->size()));
     reads_.push_back(MockRead(ASYNC,
                               response->io_buffer()->data(),
                               query->io_buffer()->size()));
     transaction_ids_.push_back(id);
   }
@@ skipping 415 matching lines @@
   PrepareSockets();
 
   TransactionHelper helper0("x.y.z", dns_protocol::kTypeA, 0 /* answers */);
 
   EXPECT_TRUE(helper0.Run(transaction_factory_.get()));
 }
 
 }  // namespace
 
 }  // namespace net
-