ServiceWorkerContainer should override contextDestroyed and clear m_provider

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 47 matching lines @@
     , public ContextLifecycleObserver
     , public WebServiceWorkerProviderClient {
     DEFINE_WRAPPERTYPEINFO();
     USING_GARBAGE_COLLECTED_MIXIN(ServiceWorkerContainer);
 public:
     using RegistrationCallbacks = WebServiceWorkerProvider::WebServiceWorkerRegistrationCallbacks;
 
     static ServiceWorkerContainer* create(ExecutionContext*);
     ~ServiceWorkerContainer();
 
-    void willBeDetachedFromFrame();
-
     DECLARE_VIRTUAL_TRACE();
 
     ServiceWorker* controller() { return m_controller; }
     ScriptPromise ready(ScriptState*);
     WebServiceWorkerProvider* provider() { return m_provider; }
 
     void registerServiceWorkerImpl(ExecutionContext*, const KURL& scriptURL, const KURL& scope, std::unique_ptr<RegistrationCallbacks>);
 
     ScriptPromise registerServiceWorker(ScriptState*, const String& pattern, const RegistrationOptions&);
     ScriptPromise getRegistration(ScriptState*, const String& documentURL);
     ScriptPromise getRegistrations(ScriptState*);
 
+    void contextDestroyed() override;
+
     // WebServiceWorkerProviderClient overrides.
     void setController(std::unique_ptr<WebServiceWorker::Handle>, bool shouldNotifyControllerChange) override;
     void dispatchMessageEvent(std::unique_ptr<WebServiceWorker::Handle>, const WebString& message, const WebMessagePortChannelArray&) override;
 
     // EventTarget overrides.
     ExecutionContext* getExecutionContext() const override { return ContextLifecycleObserver::getExecutionContext(); }
     const AtomicString& interfaceName() const override;
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(controllerchange);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(message);
 
 private:
     explicit ServiceWorkerContainer(ExecutionContext*);
 
     class GetRegistrationForReadyCallback;
     typedef ScriptPromiseProperty<Member<ServiceWorkerContainer>, Member<ServiceWorkerRegistration>, Member<ServiceWorkerRegistration>> ReadyProperty;
     ReadyProperty* createReadyProperty();
 
     WebServiceWorkerProvider* m_provider;
     Member<ServiceWorker> m_controller;
     Member<ReadyProperty> m_ready;
 };
 
 } // namespace blink
 
 #endif // ServiceWorkerContainer_h