Update installed ServiceWorkers.

content/browser/service_worker/service_worker_storage.h

Index: content/browser/service_worker/service_worker_storage.h
diff --git a/content/browser/service_worker/service_worker_storage.h b/content/browser/service_worker/service_worker_storage.h
index 33399147fe181eb21c88aea6362f6b286cb4f5a8..9d9bde565c97716c84145940ca78c04c8bad8186 100644
--- a/content/browser/service_worker/service_worker_storage.h
+++ b/content/browser/service_worker/service_worker_storage.h
@@ -53,7 +53,7 @@ class CONTENT_EXPORT ServiceWorkerStorage
       void(const std::vector<ServiceWorkerRegistrationInfo>& registrations)>
           GetAllRegistrationInfosCallback;
   typedef base::Callback<
-      void(ServiceWorkerStatusCode status, int result)>
+      void(ServiceWorkerStatusCode status, int compare_result)>
           CompareCallback;
 
   virtual ~ServiceWorkerStorage();
@@ -124,6 +124,9 @@ class CONTENT_EXPORT ServiceWorkerStorage
   // purgeable list and purges it.
   void DoomUncommittedResponse(int64 id);
 
+  void CompareScriptResources(int64 lhs_id, int64 rhs_id,
+                              const CompareCallback& callback);
+
   // Deletes the storage and starts over.
   void DeleteAndStartOver(const StatusCallback& callback);