service worker: Persist NavigationPreloadState

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 <stdint.h>
 
 #include <deque>
@@ skipping 125 matching lines @@
 
   // 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);
 
+  // Updates the specified registration's navigation preload state in storage.
+  // The caller is responsible for mutating the live registration's state.
+  void UpdateNavigationPreloadEnabled(int64_t registration_id,
+                                      const GURL& origin,
+                                      bool enable,
+                                      const StatusCallback& callback);
+  void UpdateNavigationPreloadHeader(int64_t registration_id,
+                                     const GURL& origin,
+                                     const std::string& value,
+                                     const StatusCallback& callback);
+
   // 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_t registration_id,
                           const GURL& origin,
                           const StatusCallback& callback);
 
   // Creates a resource accessor. Never returns nullptr but an accessor may be
   // associated with the disabled disk cache if the storage is disabled.
   std::unique_ptr<ServiceWorkerResponseReader> CreateResponseReader(
@@ skipping 393 matching lines @@
   std::set<int64_t> pending_deletions_;
 
   base::WeakPtrFactory<ServiceWorkerStorage> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerStorage);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_STORAGE_H_