ServiceWorker: Enable UseCounter for ServiceWorkerGlobalScope

content/child/service_worker/service_worker_provider_context.h

Index: content/child/service_worker/service_worker_provider_context.h
diff --git a/content/child/service_worker/service_worker_provider_context.h b/content/child/service_worker/service_worker_provider_context.h
index b005e22f580a6157cf07f3b622cd299b708b15ac..192be968692b86a8b7e28e4e62823dd9cc1015ae 100644
--- a/content/child/service_worker/service_worker_provider_context.h
+++ b/content/child/service_worker/service_worker_provider_context.h
@@ -58,7 +58,8 @@ class CONTENT_EXPORT ServiceWorkerProviderContext
       std::unique_ptr<ServiceWorkerHandleReference> active);
   void OnDisassociateRegistration();
   void OnSetControllerServiceWorker(
-      std::unique_ptr<ServiceWorkerHandleReference> controller);
+      std::unique_ptr<ServiceWorkerHandleReference> controller,
+      const std::set<uint32_t>& used_features);
 
   // Called on the worker thread. Used for initializing
   // ServiceWorkerGlobalScope.
@@ -71,6 +72,7 @@ class CONTENT_EXPORT ServiceWorkerProviderContext
   int provider_id() const { return provider_id_; }
 
   ServiceWorkerHandleReference* controller();
+  const std::set<uint32_t>& used_features() const { return used_features_; }
 
  private:
   friend class base::DeleteHelper<ServiceWorkerProviderContext>;
@@ -91,6 +93,8 @@ class CONTENT_EXPORT ServiceWorkerProviderContext
 
   std::unique_ptr<Delegate> delegate_;
 
+  std::set<uint32_t> used_features_;
+
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerProviderContext);
 };