Update go dependencies

vendor/k8s.io/client-go/util/flowcontrol/BUILD

@@ -16,7 +16,7 @@ go_test(
     ],
     library = ":go_default_library",
     tags = ["automanaged"],
-    deps = ["//vendor/k8s.io/client-go/util/clock:go_default_library"],
+    deps = ["//vendor/k8s.io/apimachinery/pkg/util/clock:go_default_library"],
 )
 
 go_library(
@@ -28,7 +28,7 @@ go_library(
     tags = ["automanaged"],
     deps = [
         "//vendor/github.com/juju/ratelimit:go_default_library",
-        "//vendor/k8s.io/client-go/util/clock:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/util/clock:go_default_library",
         "//vendor/k8s.io/client-go/util/integer:go_default_library",
     ],
 )

vendor/k8s.io/client-go/util/flowcontrol/backoff.go

@@ -20,7 +20,7 @@ import (
 	"sync"
 	"time"
 
-	"k8s.io/client-go/util/clock"
+	"k8s.io/apimachinery/pkg/util/clock"
 	"k8s.io/client-go/util/integer"
 )
 

vendor/k8s.io/client-go/util/flowcontrol/throttle.go

@@ -51,6 +51,22 @@ type tokenBucketRateLimiter struct {
 // The maximum number of tokens in the bucket is capped at 'burst'.
 func NewTokenBucketRateLimiter(qps float32, burst int) RateLimiter {
 	limiter := ratelimit.NewBucketWithRate(float64(qps), int64(burst))
+	return newTokenBucketRateLimiter(limiter, qps)
+}
+
+// An injectable, mockable clock interface.
+type Clock interface {
+	ratelimit.Clock
+}
+
+// NewTokenBucketRateLimiterWithClock is identical to NewTokenBucketRateLimiter
+// but allows an injectable clock, for testing.
+func NewTokenBucketRateLimiterWithClock(qps float32, burst int, clock Clock) RateLimiter {
+	limiter := ratelimit.NewBucketWithRateAndClock(float64(qps), int64(burst), clock)
+	return newTokenBucketRateLimiter(limiter, qps)
+}
+
+func newTokenBucketRateLimiter(limiter *ratelimit.Bucket, qps float32) RateLimiter {
 	return &tokenBucketRateLimiter{
 		limiter: limiter,
 		qps:     qps,