service worker: Persist NavigationPreloadState

content/browser/service_worker/service_worker_dispatcher_host.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_DISPATCHER_HOST_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_HOST_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 241 matching lines @@
       ServiceWorkerRegistration* registration);
 
   ServiceWorkerContextCore* GetContext();
   // Returns the provider host with id equal to |provider_id|, or nullptr
   // if the provider host could not be found or is not appropriate for
   // initiating a request such as register/unregister/update.
   ServiceWorkerProviderHost* GetProviderHostForRequest(
       ProviderStatus* out_status,
       int provider_id);
 
+  void DidUpdateNavigationPreloadEnabled(int thread_id,
+                                         int request_id,
+                                         int registration_id,
+                                         bool enable,
+                                         ServiceWorkerStatusCode status);
+  void DidUpdateNavigationPreloadHeader(int thread_id,
+                                        int request_id,
+                                        int registration_id,
+                                        const std::string& value,
+                                        ServiceWorkerStatusCode status);
+
   const int render_process_id_;
   MessagePortMessageFilter* const message_port_message_filter_;
   ResourceContext* resource_context_;
   scoped_refptr<ServiceWorkerContextWrapper> context_wrapper_;
 
   IDMap<ServiceWorkerHandle, IDMapOwnPointer> handles_;
 
   using RegistrationHandleMap =
       IDMap<ServiceWorkerRegistrationHandle, IDMapOwnPointer>;
   RegistrationHandleMap registration_handles_;
 
   bool channel_ready_;  // True after BrowserMessageFilter::sender_ != NULL.
   std::vector<std::unique_ptr<IPC::Message>> pending_messages_;
 
   mojo::AssociatedBindingSet<mojom::ServiceWorkerDispatcherHost> bindings_;
 
   base::WeakPtrFactory<ServiceWorkerDispatcherHost> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerDispatcherHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_HOST_H_