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

remoting/protocol/channel_multiplexer_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 "remoting/protocol/channel_multiplexer.h"
 
+#include <utility>
+
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "net/base/net_errors.h"
 #include "net/socket/socket.h"
 #include "net/socket/stream_socket.h"
 #include "remoting/base/constants.h"
 #include "remoting/protocol/connection_tester.h"
 #include "remoting/protocol/fake_stream_socket.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ skipping 326 matching lines @@
       .WillOnce(InvokeWithoutArgs(
           this, &ChannelMultiplexerTest::DeleteAfterSessionFail));
   EXPECT_CALL(cb2, OnConnectedPtr(_))
       .Times(0);
 
   base::RunLoop().RunUntilIdle();
 }
 
 }  // namespace protocol
 }  // namespace remoting