ServiceWorker: Implement updatefound event and version attributes (Chromium)

content/child/service_worker/service_worker_registration_handle_reference.h

+// Copyright 2014 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.
+
+#ifndef CONTENT_CHILD_SERVICE_WORKER_SERVICE_WORKER_REGISTRATION_HANDLE_REFERENCE_H_
+#define CONTENT_CHILD_SERVICE_WORKER_SERVICE_WORKER_REGISTRATION_HANDLE_REFERENCE_H_
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "url/gurl.h"
+
+namespace content {
+
+class ThreadSafeSender;
+struct ServiceWorkerObjectInfo;
+
+class ServiceWorkerRegistrationHandleReference {
+ public:
+  // Creates a new ServiceWorkerRegistrationHandleReference and increments
+  // ref-count.
+  static scoped_ptr<ServiceWorkerRegistrationHandleReference> Create(
+      int registration_handle_id,
+      const ServiceWorkerObjectInfo& info,
+      ThreadSafeSender* sender);
+
+  // Creates a new ServiceWorkerRegistrationHandleReference by adopting a
+  // ref-count.
+  static scoped_ptr<ServiceWorkerRegistrationHandleReference> Adopt(
+      int registration_handle_id,
+      const ServiceWorkerObjectInfo& info,
+      ThreadSafeSender* sender);
+
+  ~ServiceWorkerRegistrationHandleReference();
+
+  int handle_id() const { return handle_id_; }
+  GURL scope() const { return scope_; }
+
+ private:
+  ServiceWorkerRegistrationHandleReference(int registration_handle_id,
+                                           const ServiceWorkerObjectInfo& info,
+                                           ThreadSafeSender* sender,
+                                           bool increment_ref_in_ctor);
+
+  const int handle_id_;
+  const GURL scope_;
+  scoped_refptr<ThreadSafeSender> sender_;
+
+  DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRegistrationHandleReference);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_CHILD_SERVICE_WORKER_SERVICE_WORKER_REGISTRATION_HANDLE_REFERENCE_H_