ServiceWorker: Route unregister() through WebServiceWorkerRegistration for refactoring (2)

content/child/service_worker/web_service_worker_registration_impl.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/child/service_worker/web_service_worker_registration_impl.h"
 
 #include "content/child/service_worker/service_worker_dispatcher.h"
 #include "content/child/service_worker/service_worker_registration_handle_reference.h"
 #include "content/child/service_worker/web_service_worker_impl.h"
 #include "content/child/service_worker/web_service_worker_provider_impl.h"
@@ skipping 106 matching lines @@
     blink::WebServiceWorkerProvider* provider) {
   WebServiceWorkerProviderImpl* provider_impl =
       static_cast<WebServiceWorkerProviderImpl*>(provider);
   ServiceWorkerDispatcher* dispatcher =
       ServiceWorkerDispatcher::GetThreadSpecificInstance();
   DCHECK(dispatcher);
   dispatcher->UpdateServiceWorker(provider_impl->provider_id(),
                                   registration_id());
 }
 
+void WebServiceWorkerRegistrationImpl::unregister(
+    blink::WebServiceWorkerProvider* provider,
+    WebServiceWorkerUnregistrationCallbacks* callbacks) {
+  WebServiceWorkerProviderImpl* provider_impl =
+      static_cast<WebServiceWorkerProviderImpl*>(provider);
+  ServiceWorkerDispatcher* dispatcher =
+      ServiceWorkerDispatcher::GetThreadSpecificInstance();
+  DCHECK(dispatcher);
+  dispatcher->UnregisterServiceWorker(provider_impl->provider_id(),
+                                      registration_id(), callbacks);
+}
+
 int64 WebServiceWorkerRegistrationImpl::registration_id() const {
   return handle_ref_->registration_id();
 }
 
 }  // namespace content