Refactor util clock into it's own pkg

pkg/client/record/events_cache_test.go

@@ -24,7 +24,7 @@ import (
 
 	"k8s.io/kubernetes/pkg/api"
 	"k8s.io/kubernetes/pkg/api/unversioned"
-	"k8s.io/kubernetes/pkg/util"
+	"k8s.io/kubernetes/pkg/util/clock"
 	"k8s.io/kubernetes/pkg/util/diff"
 )
 
@@ -223,7 +223,7 @@ func TestEventCorrelator(t *testing.T) {
 
 	for testScenario, testInput := range scenario {
 		eventInterval := time.Duration(testInput.intervalSeconds) * time.Second
-		clock := util.IntervalClock{Time: time.Now(), Duration: eventInterval}
+		clock := clock.IntervalClock{Time: time.Now(), Duration: eventInterval}
 		correlator := NewEventCorrelator(&clock)
 		for i := range testInput.previousEvents {
 			event := testInput.previousEvents[i]