Stub out ServiceWorkerRegistration and Version classes

content/browser/service_worker/service_worker_registration.h

+// Copyright (c) 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.
+
+#ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REGISTRATION_H_
+#define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REGISTRATION_H_
+
+#include "base/basictypes.h"
+#include "base/gtest_prod_util.h"
+#include "base/logging.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "content/browser/service_worker/service_worker_version.h"
+#include "content/common/content_export.h"
+#include "url/gurl.h"
+
+

[michaeln, 2013/11/14 22:44:08]

nit: extra blank line

[alecflett, 2013/11/15 01:51:39]

Done.

+namespace content {
+
+class ServiceWorkerVersion;
+
+// This class manages all persistence of service workers:
+//  - Registrations
+//  - Mapping of caches to registrations / versions
+//
+// This is the place where we manage simultaneous
+// requests for the same registrations and caches, making sure that
+// two pages that are registering the same pattern at the same time
+// have their registrations coalesced rather than overwriting each
+// other.
+//
+// This class also manages the state of the upgrade process, which
+// includes managing which ServiceWorkerVersion is "active" vs "in
+// waiting" (or "pending")
+class CONTENT_EXPORT ServiceWorkerRegistration
+    : NON_EXPORTED_BASE(public base::RefCounted<ServiceWorkerRegistration>) {
+ public:
+  ServiceWorkerRegistration(const GURL& pattern,
+                            const GURL& script_url,
+                            int64 registration_id);
+
+  void Shutdown();
+  bool is_shutdown() const { return is_shutdown_; }
+
+  int64 id() const { return registration_id_; }
+  const GURL& script_url() const { return script_url_; }
+  const GURL& pattern() const { return pattern_; }
+
+  ServiceWorkerVersion* active_version() const {
+    DCHECK(!is_shutdown_);
+    return active_version_.get();
+  }
+
+  ServiceWorkerVersion* pending_version() const {
+    DCHECK(!is_shutdown_);
+    return pending_version_.get();
+  }
+
+  void set_active_version(const scoped_refptr<ServiceWorkerVersion>& version) {

[michaeln, 2013/11/14 22:30:55]

i'd prefer to go all the way and use raw ptrs here to for the sake of
consistency and simplicity

+    DCHECK(!is_shutdown_);
+    active_version_ = version;
+  }
+
+  void set_pending_version(const scoped_refptr<ServiceWorkerVersion>& version) {

[michaeln, 2013/11/14 22:30:55]

and here

+    DCHECK(!is_shutdown_);
+    pending_version_ = version;
+  }
+
+  // The final synchronous switchover after all events have been
+  // fired, and the old "active version" is being shut down.
+  void ActivatePendingVersion();
+
+ private:
+  virtual ~ServiceWorkerRegistration();
+  friend class base::RefCounted<ServiceWorkerRegistration>;
+
+  const GURL pattern_;
+  const GURL script_url_;
+  const int64 registration_id_;
+
+  scoped_refptr<ServiceWorkerVersion> active_version_;
+  scoped_refptr<ServiceWorkerVersion> pending_version_;
+
+  bool is_shutdown_;
+
+  DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRegistration);
+};
+}  // namespace content
+#endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REGISTRATION_H_