public AcceptUpgradeAsyncResult(WindowsStreamSecurityUpgradeAcceptor acceptor, AsyncCallback callback,
                                 object state)
     : base(callback, state)
 {
     this.acceptor = acceptor;
 }
 public AcceptUpgradeAsyncResult(WindowsStreamSecurityUpgradeAcceptor acceptor, AsyncCallback callback,
     object state)
     : base(callback, state)
 {
     this.acceptor = acceptor;
 }