Localize counter class member functions.

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index b4a315c5a255927ce98852a0d4563ac121601203..9baa3adab830495dec8e4fa4efd9b7111f1ddcee 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -8720,9 +8720,6 @@ void Isolate::SetCounterFunction(CounterLookupCallback callback) {
 void Isolate::SetCreateHistogramFunction(CreateHistogramCallback callback) {
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this);
   isolate->stats_table()->SetCreateHistogramFunction(callback);
-  isolate->InitializeLoggingAndCounters();
-  isolate->counters()->ResetHistograms();
-  isolate->counters()->InitializeHistograms();
 }