Include <utility> in files that use std::move() in remoting/protocol.

remoting/protocol/pseudotcp_channel_factory.cc

 // Copyright 2014 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 "remoting/protocol/pseudotcp_channel_factory.h"
 
+#include <utility>
+
 #include "base/bind.h"
 #include "net/base/net_errors.h"
 #include "remoting/base/constants.h"
 #include "remoting/protocol/datagram_channel_factory.h"
 #include "remoting/protocol/p2p_datagram_socket.h"
 #include "remoting/protocol/pseudotcp_adapter.h"
 
 namespace remoting {
 namespace protocol {
 
@@ skipping 73 matching lines @@
   pending_sockets_.erase(it);
 
   if (result != net::OK)
     socket.reset();
 
   callback.Run(std::move(socket));
 }
 
 }  // namespace protocol
 }  // namespace remoting