[ServiceWorker] Use appopriate type parameters for WebCallbacks (2/3)

content/child/service_worker/service_worker_dispatcher.h

Index: content/child/service_worker/service_worker_dispatcher.h
diff --git a/content/child/service_worker/service_worker_dispatcher.h b/content/child/service_worker/service_worker_dispatcher.h
index f44db134d7f95340ec163e153a8b6d14244ccad0..c596ab475edd53bcb6dccbb8f6b19229bc83612f 100644
--- a/content/child/service_worker/service_worker_dispatcher.h
+++ b/content/child/service_worker/service_worker_dispatcher.h
@@ -92,10 +92,9 @@ class CONTENT_EXPORT ServiceWorkerDispatcher
       int64 registration_id,
       WebServiceWorkerUnregistrationCallbacks* callbacks);
   // Corresponds to navigator.serviceWorker.getRegistration().
-  void GetRegistration(
-      int provider_id,
-      const GURL& document_url,
-      WebServiceWorkerRegistrationCallbacks* callbacks);
+  void GetRegistration(int provider_id,
+                       const GURL& document_url,
+                       WebServiceWorkerGetRegistrationCallbacks* callbacks);
   // Corresponds to navigator.serviceWorker.getRegistrations().
   void GetRegistrations(
       int provider_id,