[counters] Annotate v8 with more runtime call counters.

src/vm-state-inl.h

Index: src/vm-state-inl.h
diff --git a/src/vm-state-inl.h b/src/vm-state-inl.h
index 4f001a91068fc69aaf0e8b9f1eae0ea641aeb50c..35b69a1ddc43dec96b2edb06798314a7abfba5cc 100644
--- a/src/vm-state-inl.h
+++ b/src/vm-state-inl.h
@@ -63,18 +63,11 @@ ExternalCallbackScope::ExternalCallbackScope(Isolate* isolate, Address callback)
   scope_address_ = Simulator::current(isolate)->get_sp();
 #endif
   isolate_->set_external_callback_scope(this);
-  if (FLAG_runtime_call_stats) {
-    RuntimeCallStats::Enter(isolate_, &timer_,
-                            &RuntimeCallStats::ExternalCallback);
-  }
   TRACE_EVENT_BEGIN0(TRACE_DISABLED_BY_DEFAULT("v8.runtime"),
                      "V8.ExternalCallback");
 }
 
 ExternalCallbackScope::~ExternalCallbackScope() {
-  if (FLAG_runtime_call_stats) {
-    RuntimeCallStats::Leave(isolate_, &timer_);
-  }
   isolate_->set_external_callback_scope(previous_scope_);
   TRACE_EVENT_END0(TRACE_DISABLED_BY_DEFAULT("v8.runtime"),
                    "V8.ExternalCallback");