PlzNavigate: AppCache support.

content/browser/frame_host/navigation_request.h

 // Copyright 2014 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_FRAME_HOST_NAVIGATION_REQUEST_H_
 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATION_REQUEST_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 211 matching lines @@
   // The type of SiteInstance associated with this navigation.
   AssociatedSiteInstanceType associated_site_instance_type_;
 
   std::unique_ptr<NavigationHandleImpl> navigation_handle_;
 
   // Holds the ResourceResponse and the StreamHandle for the navigation while
   // the WillProcessResponse checks are performed by the NavigationHandle.
   scoped_refptr<ResourceResponse> response_;
   std::unique_ptr<StreamHandle> body_;
 
+  // The host_id used  by the AppCacheDispatcherHost to identity this
+  /// navigation.
+  int appcache_host_id_;

[michaeln, 2016/11/22 00:17:27]

we put this value in the ServiceWorkerNavigationHandle in the servicewrker case

+
+  // Set to true when the navigation commits. Defaults to false.
+  bool navigation_committed_;
+
   DISALLOW_COPY_AND_ASSIGN(NavigationRequest);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_REQUEST_H_