ServiceWorker: Support navigator.serviceWorker.installing

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 12e6a2dd5291d280eb0054db37ea6cb997aa2e91..672bd7c9a727195e2fbbf5967011b82d26e89b11 100644
--- a/content/child/service_worker/service_worker_provider_context.h
+++ b/content/child/service_worker/service_worker_provider_context.h
@@ -40,6 +40,8 @@ class ServiceWorkerProviderContext
   // Called from ServiceWorkerDispatcher.
   void OnServiceWorkerStateChanged(int handle_id,
                                    blink::WebServiceWorkerState state);
+  void OnSetInstallingServiceWorker(int provider_id,
+                                    const ServiceWorkerObjectInfo& info);
   void OnSetWaitingServiceWorker(int provider_id,
                                  const ServiceWorkerObjectInfo& info);
   void OnSetControllerServiceWorker(int provider_id,
@@ -47,9 +49,15 @@ class ServiceWorkerProviderContext
 
   int provider_id() const { return provider_id_; }
 
+  ServiceWorkerHandleReference* installing();
   ServiceWorkerHandleReference* waiting();
   ServiceWorkerHandleReference* controller();
 
+  // Gets the handle ID of the installing Service Worker, or
+  // kInvalidServiceWorkerHandleId if the provider does not have a
+  // installing Service Worker.
+  int installing_handle_id() const;
+
   // Gets the handle ID of the waiting Service Worker, or
   // kInvalidServiceWorkerHandleId if the provider does not have a
   // waiting Service Worker.
@@ -67,6 +75,7 @@ class ServiceWorkerProviderContext
   const int provider_id_;
   scoped_refptr<base::MessageLoopProxy> main_thread_loop_proxy_;
   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
+  scoped_ptr<ServiceWorkerHandleReference> installing_;
   scoped_ptr<ServiceWorkerHandleReference> waiting_;
   scoped_ptr<ServiceWorkerHandleReference> controller_;