net/http.persistConn.idleAt (field)

4 uses

	net/http (current package)
		transport.go#L993: 	pconn.idleAt = time.Now()
		transport.go#L1035: 			tooOld := !oldTime.IsZero() && pconn.idleAt.Round(0).Before(oldTime)
		transport.go#L1352: 			trace.GotConn(pc.gotIdleConnTrace(pc.idleAt))
		transport.go#L1893: 	idleAt    time.Time   // time it last become idle