ServiceWorker: Enable UseCounter for ServiceWorkerGlobalScope

content/child/service_worker/web_service_worker_provider_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/child/service_worker/web_service_worker_provider_impl.h"
 
 #include <memory>
 #include <utility>
 
 #include "content/child/service_worker/service_worker_dispatcher.h"
@@ skipping 35 matching lines @@
   // the single provider context across threads. (http://crbug.com/366538
   // for more context)
   GetDispatcher()->AddProviderClient(context_->provider_id(), client);
 
   if (!context_->controller())
     return;
   scoped_refptr<WebServiceWorkerImpl> controller =
       GetDispatcher()->GetOrCreateServiceWorker(
           ServiceWorkerHandleReference::Create(context_->controller()->info(),
                                                thread_safe_sender_.get()));
+
+  // Sync the controllee's use counter with the service worker's one.
+  for (uint32_t feature : context_->used_features())
+    client->countFeature(feature);
   client->setController(WebServiceWorkerImpl::CreateHandle(controller),
                         false /* shouldNotifyControllerChange */);
 }
 
 void WebServiceWorkerProviderImpl::registerServiceWorker(
     const WebURL& pattern,
     const WebURL& script_url,
     std::unique_ptr<WebServiceWorkerRegistrationCallbacks> callbacks) {
   GetDispatcher()->RegisterServiceWorker(context_->provider_id(), pattern,
                                          script_url, std::move(callbacks));
@@ skipping 42 matching lines @@
       ServiceWorkerDispatcher::GetThreadSpecificInstance();
   if (dispatcher)
     dispatcher->RemoveProviderClient(context_->provider_id());
 }
 
 ServiceWorkerDispatcher* WebServiceWorkerProviderImpl::GetDispatcher() {
   return ServiceWorkerDispatcher::GetThreadSpecificInstance();
 }
 
 }  // namespace content