Only dispose proxy-less WebServiceWorkerRegistration objects.

Source/modules/serviceworkers/ServiceWorkerContainer.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 189 matching lines @@
 
 // If the WebServiceWorker is up for adoption (does not have a
 // WebServiceWorkerProxy owner), rejects the adoption by deleting the
 // WebServiceWorker.
 static void deleteIfNoExistingOwner(WebServiceWorker* serviceWorker)
 {
     if (serviceWorker && !serviceWorker->proxy())
         delete serviceWorker;
 }
 
-static void deleteIfNoExistingOwner(WebServiceWorkerRegistration* registration)
-{
-    if (registration && !registration->proxy())
-        delete registration;
-}
-
 void ServiceWorkerContainer::setController(WebServiceWorker* serviceWorker)
 {
     if (!executionContext()) {
         deleteIfNoExistingOwner(serviceWorker);
         return;
     }
     m_controller = ServiceWorker::from(executionContext(), serviceWorker);
 }
 
 void ServiceWorkerContainer::setReadyRegistration(WebServiceWorkerRegistration* registration)
 {
     if (!executionContext()) {
-        deleteIfNoExistingOwner(registration);
+        ServiceWorkerRegistration::dispose(registration);
         return;
     }
 
     ServiceWorkerRegistration* readyRegistration = ServiceWorkerRegistration::from(executionContext(), registration);
     ASSERT(readyRegistration->active());
 
     if (m_readyRegistration) {
         ASSERT(m_readyRegistration == readyRegistration);
         ASSERT(m_ready->state() == ReadyProperty::Resolved);
         return;
@@ skipping 24 matching lines @@
     m_ready = createReadyProperty();
 
     if (ServiceWorkerContainerClient* client = ServiceWorkerContainerClient::from(executionContext)) {
         m_provider = client->provider();
         if (m_provider)
             m_provider->setClient(this);
     }
 }
 
 } // namespace blink