Revert of Revalidate using the same Resource, attempt #2

Source/core/fetch/ScriptResource.h

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
     Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
     Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
@@ skipping 39 matching lines @@
     static ResourcePtr<ScriptResource> fetch(FetchRequest&, ResourceFetcher*);
 
     // Public for testing
     ScriptResource(const ResourceRequest&, const String& charset);
 
     ~ScriptResource() override;
 
     void didAddClient(ResourceClient*) override;
     void appendData(const char*, unsigned) override;
 
-    void destroyDecodedDataForFailedRevalidation() override;
-
     const String& script();
 
     AtomicString mimeType() const;
 
     bool mimeTypeAllowedByNosniff() const;
 
 private:
     class ScriptResourceFactory : public ResourceFactory {
     public:
         ScriptResourceFactory()
             : ResourceFactory(Resource::Script) { }
 
         Resource* create(const ResourceRequest& request, const String& charset) const override
         {
             return new ScriptResource(request, charset);
         }
     };
 
     AtomicString m_script;
 };
 
 DEFINE_RESOURCE_TYPE_CASTS(Script);
 
 }
 
 #endif