After 24 hours, bust the browser cache when checking for ServiceWorker updates

content/browser/service_worker/service_worker_storage.h

 // 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.
 
 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_STORAGE_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_STORAGE_H_
 
 #include <deque>
 #include <map>
 #include <set>
@@ skipping 86 matching lines @@
   void StoreRegistration(
       ServiceWorkerRegistration* registration,
       ServiceWorkerVersion* version,
       const StatusCallback& callback);
 
   // Updates the state of the registration's stored version to active.
   void UpdateToActiveState(
       ServiceWorkerRegistration* registration,
       const StatusCallback& callback);
 
+  // Updates the stored time to match the value of
+  // registration->last_update_check().
+  void UpdateLastUpdateCheckTime(ServiceWorkerRegistration* registration);
+
   // Deletes the registration data for |registration_id|. If the registration's
   // version is live, its script resources will remain available.
   // PurgeResources should be called when it's OK to delete them.
   void DeleteRegistration(int64 registration_id,
                           const GURL& origin,
                           const StatusCallback& callback);
 
   scoped_ptr<ServiceWorkerResponseReader> CreateResponseReader(
       int64 response_id);
   scoped_ptr<ServiceWorkerResponseWriter> CreateResponseWriter(
@@ skipping 255 matching lines @@
   std::set<int64> pending_deletions_;
 
   base::WeakPtrFactory<ServiceWorkerStorage> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerStorage);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_STORAGE_H_