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

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

Index: third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextProxy.h
diff --git a/third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextProxy.h b/third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextProxy.h
index 8cbe7e8d3f5f12bd1c10880f0ef63f919e9c89bb..1028a5923fc0c8a281c4f294f958516a6837b193 100644
--- a/third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextProxy.h
+++ b/third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextProxy.h
@@ -41,12 +41,12 @@ 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.
@@ -102,7 +102,7 @@ class WebServiceWorkerContextProxy {
 
   virtual void onNavigationPreloadResponse(
       int fetchEventID,
-      std::unique_ptr<WebServiceWorkerResponse>,
+      std::unique_ptr<WebURLResponse>,
       std::unique_ptr<WebDataConsumerHandle>) = 0;
   virtual void onNavigationPreloadError(
       int fetchEventID,