Make ApplicationCache a DOMWindowClient

third_party/WebKit/Source/core/loader/appcache/ApplicationCache.h

 /*
  * Copyright (C) 2008, 2009 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 20 matching lines @@
 #include "core/loader/appcache/ApplicationCacheHost.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
 
 namespace blink {
 
 class ExceptionState;
 class LocalFrame;
 
 class ApplicationCache final : public EventTargetWithInlineData,
-                               public ContextLifecycleObserver {
+                               public DOMWindowClient {
   DEFINE_WRAPPERTYPEINFO();
   USING_GARBAGE_COLLECTED_MIXIN(ApplicationCache);
 
  public:
   static ApplicationCache* create(LocalFrame* frame) {
     return new ApplicationCache(frame);
   }
   ~ApplicationCache() override {}
 
-  void contextDestroyed() override;
-
   unsigned short status() const;
   void update(ExceptionState&);
   void swapCache(ExceptionState&);
   void abort();
 
   // Explicitly named attribute event listener helpers
 
   DEFINE_ATTRIBUTE_EVENT_LISTENER(checking);
   DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
   DEFINE_ATTRIBUTE_EVENT_LISTENER(noupdate);
@@ skipping 14 matching lines @@
   explicit ApplicationCache(LocalFrame*);
 
   void recordAPIUseType() const;
 
   ApplicationCacheHost* applicationCacheHost() const;
 };
 
 }  // namespace blink
 
 #endif  // ApplicationCache_h