Implement memory-persistent registration

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/logging.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "content/browser/service_worker/service_worker_version.h"
+
+class GURL;
+
+namespace content {
+
+class ServiceWorkerVersion;
+
+// This class acts as a persistent instance
+class ServiceWorkerRegistration
+    : public base::RefCountedThreadSafe<ServiceWorkerRegistration> {

[michaeln, 2013/11/11 23:48:24]

Is there a reason to make this a thread-safe? I think we should strive to have
this class be a IO thread only sort of class, so no need for threadsafe
refcounting.

+ public:
+  ServiceWorkerRegistration(const GURL& pattern,

[michaeln, 2013/11/11 23:48:24]

other places we use the term 'scope', here it's 'pattern', either is fine... i
have a preference for 'pattern'.

+                            const GURL& script_url,
+                            int32 service_worker_id);

[michaeln, 2013/11/11 23:48:24]

registration_id this arg s/b called registration_id

+
+  int32 id() const { return registration_id_; }

[kinuko, 2013/11/08 09:08:21]

We're using int64 in other files

[alecflett, 2013/11/08 22:50:54]

Done.

+
+  void Shutdown();
+
+  ServiceWorkerVersion* active_version() {
+    DCHECK(!is_shutdown_);
+    return active_version_.get();
+  }
+  ServiceWorkerVersion* in_waiting_version() {
+    return in_waiting_version_.get();
+  }
+
+  void set_active_version(ServiceWorkerVersion* version) {
+    DCHECK(!is_shutdown_);
+    active_version_.reset(version);
+  }
+  void set_in_waiting_version(ServiceWorkerVersion* version) {
+    DCHECK(!is_shutdown_);
+    in_waiting_version_.reset(version);
+  }
+
+ private:
+  virtual ~ServiceWorkerRegistration();
+  friend class base::RefCountedThreadSafe<ServiceWorkerRegistration>;
+
+  const GURL& pattern_;
+  const GURL& script_url_;
+  const int32 registration_id_;
+
+  scoped_ptr<ServiceWorkerVersion> active_version_;
+  scoped_ptr<ServiceWorkerVersion> in_waiting_version_;
+
+  bool is_shutdown_;
+
+  DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRegistration);
+};
+}
+#endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REGISTRATION_H_