More live edit timeline events.

runtime/vm/class_finalizer.cc

Index: runtime/vm/class_finalizer.cc
diff --git a/runtime/vm/class_finalizer.cc b/runtime/vm/class_finalizer.cc
index 027072b6fd87e4a29dd79cecbf53538dd59b86d8..6554d233b1142f4a5a12f3cc9daf6d81ddaddcda 100644
--- a/runtime/vm/class_finalizer.cc
+++ b/runtime/vm/class_finalizer.cc
@@ -12,6 +12,7 @@
 #include "vm/log.h"
 #include "vm/object_store.h"
 #include "vm/symbols.h"
+#include "vm/timeline.h"
 
 namespace dart {
 
@@ -118,6 +119,8 @@ static void CollectImmediateSuperInterfaces(
 // b) after the user classes are loaded (dart_api).
 bool ClassFinalizer::ProcessPendingClasses() {
   Thread* thread = Thread::Current();
+  NOT_IN_PRODUCT(TimelineDurationScope tds(thread, Timeline::GetIsolateStream(),
+                                           "ProcessPendingClasses"));
   Isolate* isolate = thread->isolate();
   ASSERT(isolate != NULL);
   HANDLESCOPE(thread);