Remove the prefinalizer of Resource

third_party/WebKit/Source/core/fetch/CSSStyleSheetResource.cpp

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller (mueller@kde.org)
     Copyright (C) 2002 Waldo Bastian (bastian@kde.org)
     Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
     Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.
 
     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
@@ skipping 40 matching lines @@
 
 CSSStyleSheetResource::CSSStyleSheetResource(const ResourceRequest& resourceRequest, const ResourceLoaderOptions& options, const String& charset)
     : StyleSheetResource(resourceRequest, CSSStyleSheet, options, "text/css", charset)
 {
 }
 
 CSSStyleSheetResource::~CSSStyleSheetResource()
 {
 }
 
-void CSSStyleSheetResource::willDestroyResourceInternal()
-{
-    setParsedStyleSheetCache(nullptr);
-}
-
 void CSSStyleSheetResource::setParsedStyleSheetCache(StyleSheetContents* newSheet)
 {
     if (m_parsedStyleSheetCache)
-        m_parsedStyleSheetCache->setReferencedFromResource(false);
+        m_parsedStyleSheetCache->clearReferencedFromResource();
     m_parsedStyleSheetCache = newSheet;
     if (m_parsedStyleSheetCache)
-        m_parsedStyleSheetCache->setReferencedFromResource(true);
+        m_parsedStyleSheetCache->setReferencedFromResource(this);
 }
 
 DEFINE_TRACE(CSSStyleSheetResource)
 {
     visitor->trace(m_parsedStyleSheetCache);
     StyleSheetResource::trace(visitor);
 }
 
 void CSSStyleSheetResource::didAddClient(ResourceClient* c)
 {
@@ skipping 95 matching lines @@
         // This stylesheet resource did conflict with another resource and was
         // not added to the cache.
         setParsedStyleSheetCache(nullptr);
         return;
     }
     setParsedStyleSheetCache(sheet);
     setDecodedSize(m_parsedStyleSheetCache->estimatedSizeInBytes());
 }
 
 } // namespace blink