[Background Sync] Use Mojo IPC to fire background sync events

content/browser/service_worker/service_worker_version.h

Index: content/browser/service_worker/service_worker_version.h
diff --git a/content/browser/service_worker/service_worker_version.h b/content/browser/service_worker/service_worker_version.h
index deb22aadd31488c0001ec33642d1c96f619db568..e9f258f143b2f289795dc5474817767149267bf2 100644
--- a/content/browser/service_worker/service_worker_version.h
+++ b/content/browser/service_worker/service_worker_version.h
@@ -21,6 +21,7 @@
 #include "base/timer/timer.h"
 #include "content/browser/service_worker/embedded_worker_instance.h"
 #include "content/browser/service_worker/service_worker_script_cache_map.h"
+#include "content/common/background_sync_service.mojom.h"
 #include "content/common/content_export.h"
 #include "content/common/service_worker/service_worker_status_code.h"
 #include "content/common/service_worker/service_worker_types.h"
@@ -432,8 +433,7 @@ class CONTENT_EXPORT ServiceWorkerVersion
   void OnFetchEventFinished(int request_id,
                             ServiceWorkerFetchEventResult result,
                             const ServiceWorkerResponse& response);
-  void OnSyncEventFinished(int request_id,
-                           blink::WebServiceWorkerEventResult result);
+  void OnSyncEventFinished(int request_id, ServiceWorkerEventStatus status);
   void OnNotificationClickEventFinished(int request_id);
   void OnPushEventFinished(int request_id,
                            blink::WebServiceWorkerEventResult result);
@@ -602,6 +602,8 @@ class CONTENT_EXPORT ServiceWorkerVersion
   scoped_ptr<PingController> ping_controller_;
   scoped_ptr<Metrics> metrics_;
 
+  BackgroundSyncServiceClientPtr background_sync_dispatcher_;
+
   base::WeakPtrFactory<ServiceWorkerVersion> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerVersion);