Implement updateViaCache flag and no-cache by default for main service worker scripts

third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerContainer.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 59 matching lines @@
 
   DECLARE_VIRTUAL_TRACE();
 
   ServiceWorker* controller() { return controller_; }
   ScriptPromise ready(ScriptState*);
   WebServiceWorkerProvider* Provider() { return provider_; }
 
   void RegisterServiceWorkerImpl(ExecutionContext*,
                                  const KURL& script_url,
                                  const KURL& scope,
+                                 WebServiceWorkerUpdateViaCache,
                                  std::unique_ptr<RegistrationCallbacks>);
 
   ScriptPromise registerServiceWorker(ScriptState*,
                                       const String& pattern,
                                       const RegistrationOptions&);
   ScriptPromise getRegistration(ScriptState*, const String& document_url);
   ScriptPromise getRegistrations(ScriptState*);
 
   void ContextDestroyed(ExecutionContext*) override;
 
@@ skipping 26 matching lines @@
 
   WebServiceWorkerProvider* provider_;
   Member<ServiceWorker> controller_;
   Member<ReadyProperty> ready_;
   Member<NavigatorServiceWorker> navigator_;
 };
 
 }  // namespace blink
 
 #endif  // ServiceWorkerContainer_h