Add ServiceWorkerVersion::status() (which is to be persisted unlike running status)

content/browser/service_worker/service_worker_registration.cc

 // Copyright 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.
 
 #include "content/browser/service_worker/service_worker_registration.h"
 
 #include "content/public/browser/browser_thread.h"
 
 namespace content {
 
 ServiceWorkerRegistration::ServiceWorkerRegistration(const GURL& pattern,
                                                      const GURL& script_url,
                                                      int64 registration_id)
     : pattern_(pattern),
       script_url_(script_url),
       registration_id_(registration_id),
-      next_version_id_(0L),
       is_shutdown_(false) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 }
 
 ServiceWorkerRegistration::~ServiceWorkerRegistration() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   DCHECK(is_shutdown_);
 }
 
 void ServiceWorkerRegistration::Shutdown() {
   DCHECK(!is_shutdown_);
   if (active_version_)
     active_version_->Shutdown();
   active_version_ = NULL;
   if (pending_version_)
     pending_version_->Shutdown();
   pending_version_ = NULL;
   is_shutdown_ = true;
 }
 
 void ServiceWorkerRegistration::ActivatePendingVersion() {
   active_version_->Shutdown();
   active_version_ = pending_version_;
   pending_version_ = NULL;
 }
 
 }  // namespace content