Use Sec as well as Usec in ProcResInfo

Timeval has two fields: Sec and Usec, but in previous implementation, it
only uses Usec, so Sec data is abandoned.

Bug: 271526845
Test: check metric, and if seconds data is reserved.
Change-Id: I911467f77b41995f6c833099648fe62fbc9909eb
diff --git a/ui/metrics/event.go b/ui/metrics/event.go
index b3a027e..cbdeb27 100644
--- a/ui/metrics/event.go
+++ b/ui/metrics/event.go
@@ -135,8 +135,8 @@
 	e := t.peek()
 	e.procResInfo = append(e.procResInfo, &soong_metrics_proto.ProcessResourceInfo{
 		Name:             proto.String(name),
-		UserTimeMicros:   proto.Uint64(uint64(rusage.Utime.Usec)),
-		SystemTimeMicros: proto.Uint64(uint64(rusage.Stime.Usec)),
+		UserTimeMicros:   proto.Uint64(uint64(state.UserTime().Microseconds())),
+		SystemTimeMicros: proto.Uint64(uint64(state.SystemTime().Microseconds())),
 		MinorPageFaults:  proto.Uint64(uint64(rusage.Minflt)),
 		MajorPageFaults:  proto.Uint64(uint64(rusage.Majflt)),
 		// ru_inblock and ru_oublock are measured in blocks of 512 bytes.