if s.group != nil {
		return s.group.Now()
	}
	return time.Now()
}

// newTimer creates a new time.Timer, or a synthetic timer in tests.
func (s *http2Server) newTimer(d time.Duration) http2timer {
	if s.group != nil {
		return s.group.NewTimer(d)
	}
	return http2timeTimer{time.NewTimer(d)}
}

// afterFunc creates a new time.AfterFunc timer, or a synthetic timer in tests.