[WIP] Support PerformanceResourceTiming for Service Worker Navigation Preload

third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextProxy.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 107 matching lines @@
   virtual void DispatchPaymentRequestEvent(int event_id,
                                            const WebPaymentAppRequest&) = 0;
 
   virtual void OnNavigationPreloadResponse(
       int fetch_event_id,
       std::unique_ptr<WebURLResponse>,
       std::unique_ptr<WebDataConsumerHandle>) = 0;
   virtual void OnNavigationPreloadError(
       int fetch_event_id,
       std::unique_ptr<WebServiceWorkerError>) = 0;
+  virtual void OnNavigationPreloadComplete(int fetch_event_id,
+                                           double completion_time,
+                                           int64_t encoded_data_length,
+                                           int64_t encoded_body_length,
+                                           int64_t decoded_body_length) = 0;
 };
 
 }  // namespace blink
 
 #endif  // WebServiceWorkerContextProxy_h