CallbackPromiseAdapter types should be more compatible with WebCallbacks (3/3).

public/platform/WebServiceWorkerRegistration.h

Index: public/platform/WebServiceWorkerRegistration.h
diff --git a/public/platform/WebServiceWorkerRegistration.h b/public/platform/WebServiceWorkerRegistration.h
index 0bf5cd19406418dc7d94059544c240cd4954e5b1..e835d8ab9290a4b4483a4ae508414951ad892157 100644
--- a/public/platform/WebServiceWorkerRegistration.h
+++ b/public/platform/WebServiceWorkerRegistration.h
@@ -18,8 +18,8 @@ class WebServiceWorkerRegistration {
 public:
     virtual ~WebServiceWorkerRegistration() { }
 
-    using WebServiceWorkerUpdateCallbacks = WebCallbacks<void, WebPassOwnPtr<WebServiceWorkerError>>;
-    using WebServiceWorkerUnregistrationCallbacks = WebCallbacks<bool*, WebPassOwnPtr<WebServiceWorkerError>>;
+    using WebServiceWorkerUpdateCallbacks = WebCallbacks<void, const WebServiceWorkerError&>;
+    using WebServiceWorkerUnregistrationCallbacks = WebCallbacks<bool, const WebServiceWorkerError&>;
 
     virtual void setProxy(WebServiceWorkerRegistrationProxy*) { }
     virtual WebServiceWorkerRegistrationProxy* proxy() { return nullptr; }