BackgroundSync sync events need to be ExtendableEvents, blink side

Source/web/ServiceWorkerGlobalScopeClientImpl.cpp

Index: Source/web/ServiceWorkerGlobalScopeClientImpl.cpp
diff --git a/Source/web/ServiceWorkerGlobalScopeClientImpl.cpp b/Source/web/ServiceWorkerGlobalScopeClientImpl.cpp
index c0d18481a4e27d1916c2d063552baae9deaa3eea..36c0ed46d0d4248adfe79a384ff79e9a41ab39b4 100644
--- a/Source/web/ServiceWorkerGlobalScopeClientImpl.cpp
+++ b/Source/web/ServiceWorkerGlobalScopeClientImpl.cpp
@@ -103,9 +103,9 @@ void ServiceWorkerGlobalScopeClientImpl::didHandlePushEvent(int pushEventID, Web
     m_client.didHandlePushEvent(pushEventID, result);
 }
 
-void ServiceWorkerGlobalScopeClientImpl::didHandleSyncEvent(int syncEventID)
+void ServiceWorkerGlobalScopeClientImpl::didHandleSyncEvent(int syncEventID, WebServiceWorkerEventResult result)
 {
-    m_client.didHandleSyncEvent(syncEventID);
+    m_client.didHandleSyncEvent(syncEventID, result);
 }
 
 void ServiceWorkerGlobalScopeClientImpl::didHandleCrossOriginConnectEvent(int connectEventID, bool acceptConnect)