[BackgroundSync] Use appopriate type parameters for WebCallbacks (2/4)

Source/modules/background_sync/SyncRegistration.cpp

Index: Source/modules/background_sync/SyncRegistration.cpp
diff --git a/Source/modules/background_sync/SyncRegistration.cpp b/Source/modules/background_sync/SyncRegistration.cpp
index 64850cfa2435ec05ad3eccf30a4f1aa092d3a56a..21c3758cc624ec29cc5526875b038a3a2b71cc4a 100644
--- a/Source/modules/background_sync/SyncRegistration.cpp
+++ b/Source/modules/background_sync/SyncRegistration.cpp
@@ -27,16 +27,9 @@ SyncRegistration* SyncRegistration::create(const WebSyncRegistration& syncRegist
     return new SyncRegistration(syncRegistration.id, options, serviceWorkerRegistration);
 }
 
-SyncRegistration* SyncRegistration::take(ScriptPromiseResolver*, WebSyncRegistration* syncRegistration, ServiceWorkerRegistration* serviceWorkerRegistration)
+SyncRegistration* SyncRegistration::take(ScriptPromiseResolver*, PassOwnPtr<WebSyncRegistration> registration, ServiceWorkerRegistration* serviceWorkerRegistration)
 {
-    OwnPtr<WebSyncRegistration> registration = adoptPtr(syncRegistration);
-    return create(*syncRegistration, serviceWorkerRegistration);
-}
-
-void SyncRegistration::dispose(WebSyncRegistration* syncRegistration)
-{
-    if (syncRegistration)
-        delete syncRegistration;
+    return create(*registration, serviceWorkerRegistration);
 }
 
 SyncRegistration::SyncRegistration(int64_t id, const SyncRegistrationOptions& options, ServiceWorkerRegistration* serviceWorkerRegistration)