Remove RefCountedGarbageCollected from EventTarget objects

Source/modules/indexeddb/IDBTransaction.h

Index: Source/modules/indexeddb/IDBTransaction.h
diff --git a/Source/modules/indexeddb/IDBTransaction.h b/Source/modules/indexeddb/IDBTransaction.h
index 01709a7107bb644a42d801076fabcd6ccfd283aa..510ab22af373ff5dd8e2a3b0d9a5808d879869d8 100644
--- a/Source/modules/indexeddb/IDBTransaction.h
+++ b/Source/modules/indexeddb/IDBTransaction.h
@@ -49,11 +49,10 @@ class IDBOpenDBRequest;
 struct IDBObjectStoreMetadata;
 
 class IDBTransaction FINAL
-    : public RefCountedGarbageCollected<IDBTransaction>
+    : public GarbageCollectedFinalized<IDBTransaction>
     , public ScriptWrappable
     , public EventTargetWithInlineData
     , public ActiveDOMObject {
-    DEFINE_EVENT_TARGET_REFCOUNTING(RefCountedGarbageCollected<IDBTransaction>);
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(IDBTransaction);
 public:
     static IDBTransaction* create(ExecutionContext*, int64_t, const Vector<String>& objectStoreNames, blink::WebIDBDatabase::TransactionMode, IDBDatabase*);