Assert about ServiceWorkerRegisterJob internal state in terms of phases

content/browser/service_worker/service_worker_register_job.h

Index: content/browser/service_worker/service_worker_register_job.h
diff --git a/content/browser/service_worker/service_worker_register_job.h b/content/browser/service_worker/service_worker_register_job.h
index 46aa9c89dbc05ae48ee815e6027cc9eb42154613..fbe02288a2e5a5d9585d392e814714301ad72476 100644
--- a/content/browser/service_worker/service_worker_register_job.h
+++ b/content/browser/service_worker/service_worker_register_job.h
@@ -54,6 +54,29 @@ class ServiceWorkerRegisterJob : public ServiceWorkerRegisterJobBase {
   virtual RegistrationJobType GetType() OVERRIDE;
 
  private:
+  enum Phase {
+     INITIAL,
+     START,
+     REGISTER,
+     UPDATE,
+     INSTALL,
+     ACTIVATE,
+     COMPLETE
+  };
+
+  struct ServiceWorkerRegisterJobInternal {
+    ServiceWorkerRegisterJobInternal()
+        : registration_(NULL), pending_version_(NULL) {}
+
+    scoped_refptr<ServiceWorkerRegistration> registration_;
+    scoped_refptr<ServiceWorkerVersion> pending_version_;
+  };
+
+  void set_registration(ServiceWorkerRegistration* registration);
+  ServiceWorkerRegistration* registration();
+  void set_pending_version(ServiceWorkerVersion* version);
+  ServiceWorkerVersion* pending_version();
+
   void HandleExistingRegistrationAndContinue(
       ServiceWorkerStatusCode status,
       const scoped_refptr<ServiceWorkerRegistration>& registration);
@@ -68,14 +91,15 @@ class ServiceWorkerRegisterJob : public ServiceWorkerRegisterJobBase {
   void RunCallbacks(ServiceWorkerStatusCode status,
                     ServiceWorkerVersion* version);
 
-  // The ServiceWorkerStorage object should always outlive this.
+  // The ServiceWorkerContextCore object should always outlive this.
   base::WeakPtr<ServiceWorkerContextCore> context_;
-  scoped_refptr<ServiceWorkerRegistration> registration_;
-  scoped_refptr<ServiceWorkerVersion> pending_version_;
+
   const GURL pattern_;
   const GURL script_url_;
   std::vector<RegistrationCallback> callbacks_;
   std::vector<int> pending_process_ids_;
+  Phase phase_;
+  ServiceWorkerRegisterJobInternal internal_;
   base::WeakPtrFactory<ServiceWorkerRegisterJob> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRegisterJob);