Use fetch_event_id (fetchEventID in blink) for FetchEvent

third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextClient.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 125 matching lines @@
       int eventID,
       WebServiceWorkerEventResult result,
       double eventDispatchTime) {}
 
   // ServiceWorker specific methods. respondFetchEvent will be called after
   // FetchEvent returns a response by the ServiceWorker's script context, and
   // didHandleFetchEvent will be called after the end of FetchEvent's
   // lifecycle. When no response is provided, the browser should fallback to
   // native fetch. EventIDs are the same with the ids passed from
   // dispatchFetchEvent respectively.
-  virtual void respondToFetchEvent(int responseID, double eventDispatchTime) {}
-  virtual void respondToFetchEvent(int responseID,
+  virtual void respondToFetchEvent(int fetchEventID, double eventDispatchTime) {
+  }
+  virtual void respondToFetchEvent(int fetchEventID,
                                    const WebServiceWorkerResponse& response,
                                    double eventDispatchTime) {}
-  virtual void didHandleFetchEvent(int eventFinishID,
+  virtual void didHandleFetchEvent(int fetchEventID,
                                    WebServiceWorkerEventResult result,
                                    double eventDispatchTime) {}
 
   // ServiceWorker specific method. Called after InstallEvent (dispatched
   // via WebServiceWorkerContextProxy) is handled by the ServiceWorker's
   // script context.
   virtual void didHandleInstallEvent(int installEventID,
                                      WebServiceWorkerEventResult result,
                                      double eventDispatchTime) {}
 
@@ skipping 105 matching lines @@
   // Called when the worker wants to register subscopes to handle via foreign
   // fetch. Will only be called while an install event is in progress.
   virtual void registerForeignFetchScopes(
       const WebVector<WebURL>& subScopes,
       const WebVector<WebSecurityOrigin>& origins) = 0;
 };
 
 }  // namespace blink
 
 #endif  // WebServiceWorkerContextClient_h