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

content/child/service_worker/web_service_worker_provider_impl.cc

Index: content/child/service_worker/web_service_worker_provider_impl.cc
diff --git a/content/child/service_worker/web_service_worker_provider_impl.cc b/content/child/service_worker/web_service_worker_provider_impl.cc
index 0485d68df5b2e22900653a100d40c96a7a788698..8fb9d344e1682db163662af32082f900992760dc 100644
--- a/content/child/service_worker/web_service_worker_provider_impl.cc
+++ b/content/child/service_worker/web_service_worker_provider_impl.cc
@@ -59,9 +59,9 @@ void WebServiceWorkerProviderImpl::registerServiceWorker(
 
 void WebServiceWorkerProviderImpl::unregisterServiceWorker(
     const WebURL& pattern,
-    WebServiceWorkerUnregistrationCallbacks* callbacks) {
-  GetDispatcher()->UnregisterServiceWorker(
-      context_->provider_id(), pattern, callbacks);
+    blink::WebCallbacks<bool, blink::WebServiceWorkerError>* callbacks) {
+  GetDispatcher()->DeprecatedUnregisterServiceWorker(context_->provider_id(),
+                                                     pattern, callbacks);
 }
 
 void WebServiceWorkerProviderImpl::getRegistration(