Oilpan: prefer eager finalization over prefinalizers.

Source/modules/serviceworkers/ServiceWorkerRegistration.h

Index: Source/modules/serviceworkers/ServiceWorkerRegistration.h
diff --git a/Source/modules/serviceworkers/ServiceWorkerRegistration.h b/Source/modules/serviceworkers/ServiceWorkerRegistration.h
index 86f9b60037a13135829d0a17a479166b6e3c7c58..28a0a100aaa971610d88681617102e595c2e1085 100644
--- a/Source/modules/serviceworkers/ServiceWorkerRegistration.h
+++ b/Source/modules/serviceworkers/ServiceWorkerRegistration.h
@@ -31,7 +31,6 @@ class ServiceWorkerRegistration final
     DEFINE_WRAPPERTYPEINFO();
     DEFINE_EVENT_TARGET_REFCOUNTING_WILL_BE_REMOVED(RefCountedGarbageCollected<ServiceWorkerRegistration>);
     USING_GARBAGE_COLLECTED_MIXIN(ServiceWorkerRegistration);
-    USING_PRE_FINALIZER(ServiceWorkerRegistration, dispose);
 public:
     // EventTarget overrides.
     virtual const AtomicString& interfaceName() const override;
@@ -62,6 +61,9 @@ public:
     DEFINE_ATTRIBUTE_EVENT_LISTENER(updatefound);
 
     virtual ~ServiceWorkerRegistration() override;
+
+    // Eager finalization needed to promptly release owned WebServiceWorkerRegistration.
+    EAGERLY_FINALIZE();
     DECLARE_VIRTUAL_TRACE();
 
 private:
@@ -72,8 +74,6 @@ private:
     virtual bool hasPendingActivity() const override;
     virtual void stop() override;
 
-    void dispose();
-
     OwnPtr<WebServiceWorkerRegistration> m_outerRegistration;
     WebServiceWorkerProvider* m_provider;
     RefPtrWillBeMember<ServiceWorker> m_installing;