[net/dns] Handle TC bit on DNS response in DnsTransaction.

net/dns/dns_session.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_session.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/rand_util.h"
 #include "base/stl_util.h"
 #include "base/time.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/net_errors.h"
 #include "net/dns/dns_config_service.h"
 #include "net/dns/dns_socket_pool.h"
+#include "net/socket/stream_socket.h"
+#include "net/udp/datagram_client_socket.h"
 
 namespace net {
 
 DnsSession::SocketLease::SocketLease(scoped_refptr<DnsSession> session,
                                      unsigned server_index,
                                      scoped_ptr<DatagramClientSocket> socket)
     : session_(session), server_index_(server_index), socket_(socket.Pass()) {}
 
 DnsSession::SocketLease::~SocketLease() {
   session_->FreeSocket(server_index_, socket_.Pass());
@@ skipping 42 matching lines @@
     return scoped_ptr<SocketLease>(NULL);
 
   socket->NetLog().BeginEvent(
       NetLog::TYPE_SOCKET_IN_USE,
       source.ToEventParametersCallback());
 
   SocketLease* lease = new SocketLease(this, server_index, socket.Pass());
   return scoped_ptr<SocketLease>(lease);
 }
 
+scoped_ptr<StreamSocket> DnsSession::CreateTCPSocket(
+    unsigned server_index,
+    const NetLog::Source& source) {
+  return socket_pool_->CreateTCPSocket(server_index, source);
+}
+
 // Release a socket.
 void DnsSession::FreeSocket(
     unsigned server_index,
     scoped_ptr<DatagramClientSocket> socket) {
   DCHECK(socket.get());
 
   socket->NetLog().EndEvent(NetLog::TYPE_SOCKET_IN_USE);
 
   socket_pool_->FreeSocket(server_index, socket.Pass());
 }
 
 }  // namespace net