Use WebURLResponse to pass the navigation preload response from SWContextClient to FetchEvent.

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 23 matching lines @@
 #include "public/platform/WebMessagePortChannel.h"
 #include "public/platform/modules/serviceworker/WebServiceWorker.h"
 #include "public/platform/modules/serviceworker/WebServiceWorkerRegistration.h"
 
 #include <memory>
 
 namespace blink {
 
 class WebDataConsumerHandle;
 class WebServiceWorkerRequest;
-class WebServiceWorkerResponse;
 class WebString;
 struct WebNotificationData;
 struct WebPaymentAppRequestData;
 struct WebServiceWorkerClientInfo;
 struct WebServiceWorkerError;
+class WebURLResponse;
 
 // A proxy interface to talk to the worker's GlobalScope implementation.
 // All methods of this class must be called on the worker thread.
 class WebServiceWorkerContextProxy {
  public:
   virtual ~WebServiceWorkerContextProxy() {}
 
   virtual void setRegistration(
       std::unique_ptr<WebServiceWorkerRegistration::Handle>) = 0;
 
@@ skipping 35 matching lines @@
   // didHandleSyncEvent is called on the context client.
   virtual void dispatchSyncEvent(int syncEventID,
                                  const WebString& tag,
                                  LastChanceOption) = 0;
 
   virtual void dispatchPaymentRequestEvent(int eventID,
                                            const WebPaymentAppRequestData&) = 0;
 
   virtual void onNavigationPreloadResponse(
       int fetchEventID,
-      std::unique_ptr<WebServiceWorkerResponse>,
+      std::unique_ptr<WebURLResponse>,
       std::unique_ptr<WebDataConsumerHandle>) = 0;
   virtual void onNavigationPreloadError(
       int fetchEventID,
       std::unique_ptr<WebServiceWorkerError>) = 0;
 };
 
 }  // namespace blink
 
 #endif  // WebServiceWorkerContextProxy_h