code: func newConnection(conn *spdystream.Connection, newStreamHandler httpstream.NewStreamHandler) httpstream.Connection {
  	c := &connection{conn: conn, newStreamHandler: newStreamHandler}
  	go conn.Serve(c.newSpdyStream)
  	return c
  }
docs: // newConnection returns a new connection wrapping conn. newStreamHandler
  // will be invoked when the server receives a newly created stream from the
  // client.