Fill in some of ServiceWorkerFetchStores.

content/browser/service_worker/service_worker_fetch_store.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_BROWSER_SERVICE_WORKER_SERVICE_WORKER_FETCH_STORE_H_
+#define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_FETCH_STORE_H_
+
+#include "base/callback.h"
+#include "base/files/file_path.h"
+
+namespace content {
+
+// TODO(jkarlin): Fill this in with a real FetchStore implementation as
+// specified in
+// https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html.
+// TODO(jkarlin): Unload store backend from memory once the store object is no
+// longer referenced in javascript.
+
+// Represents a ServiceWorker FetchStore as seen in
+// https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html.
+// InitializeIfNeeded must be called before calling the other public members.
+class ServiceWorkerFetchStore {
+ public:
+  static ServiceWorkerFetchStore* CreateMemoryStore(const std::string& name);
+  static ServiceWorkerFetchStore* CreatePersistentStore(
+      const base::FilePath& path,
+      const std::string& name);
+  virtual ~ServiceWorkerFetchStore();
+
+  // Loads the backend and calls the callback with the result (true for
+  // success). This must be called before member functions that require a
+  // backend are called.
+  void CreateBackend(const base::Callback<void(bool)>& callback);
+
+  void set_name(const std::string& name) { name_ = name; }
+  const std::string& name() const { return name_; }
+  int32 id() const { return id_; }
+  void set_id(int32 id) { id_ = id; }
+
+ private:
+  ServiceWorkerFetchStore(const base::FilePath& path, const std::string& name);
+
+  base::FilePath path_;
+  std::string name_;
+  int32 id_;
+
+  DISALLOW_COPY_AND_ASSIGN(ServiceWorkerFetchStore);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_FETCH_STORE_H_