code: func NewClientConnection(conn net.Conn) (httpstream.Connection, error) {
  	spdyConn, err := spdystream.NewConnection(conn, false)
  	if err != nil {
  		defer conn.Close()
  		return nil, err
  	}
  
  	return newConnection(spdyConn, httpstream.NoOpNewStreamHandler), nil
  }
docs: // NewClientConnection creates a new SPDY client connection.