Move ResourceOwner on to the oilpan heap.

third_party/WebKit/Source/core/dom/ScriptLoader.h

 /*
  * Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 21 matching lines @@
 
 namespace blink {
 
 class Element;
 class ScriptLoaderClient;
 class ScriptSourceCode;
 class LocalFrame;
 
 class CORE_EXPORT ScriptLoader : public NoBaseWillBeGarbageCollectedFinalized<ScriptLoader>, private ScriptResourceClient {
     USING_FAST_MALLOC_WILL_BE_REMOVED(ScriptLoader);
+    WILL_BE_USING_PRE_FINALIZER(ScriptLoader, detach);
 public:
     static PassOwnPtrWillBeRawPtr<ScriptLoader> create(Element* element, bool createdByParser, bool isEvaluated)
     {
         return adoptPtrWillBeNoop(new ScriptLoader(element, createdByParser, isEvaluated));
     }
 
     ~ScriptLoader() override;
     DECLARE_VIRTUAL_TRACE();
 
     Element* element() const { return m_element; }
@@ skipping 22 matching lines @@
     bool isParserInserted() const { return m_parserInserted; }
     bool alreadyStarted() const { return m_alreadyStarted; }
     bool forceAsync() const { return m_forceAsync; }
 
     // Helper functions used by our parent classes.
     void didNotifySubtreeInsertionsToDocument();
     void childrenChanged();
     void handleSourceAttribute(const String& sourceUrl);
     void handleAsyncAttribute();
 
-    virtual bool isReady() const { return m_pendingScript.isReady(); }
+    virtual bool isReady() const { return m_pendingScript && m_pendingScript->isReady(); }
 
     // Clears the connection to the PendingScript (and Element and Resource).
     void detach();
 
 protected:
     ScriptLoader(Element*, bool createdByParser, bool isEvaluated);
 
 private:
     bool ignoresLoadRequest() const;
     bool isScriptForEventSupported() const;
     void logScriptMimetype(ScriptResource*, LocalFrame*, String);
 
     bool fetchScript(const String& sourceUrl, FetchRequest::DeferOption);
 
     ScriptLoaderClient* client() const;
 
     // ResourceClient
     void notifyFinished(Resource*) override;
     String debugName() const override { return "ScriptLoader"; }
 
     RawPtrWillBeMember<Element> m_element;
     ResourcePtr<ScriptResource> m_resource;
     WTF::OrdinalNumber m_startLineNumber;
     String m_characterEncoding;
     String m_fallbackCharacterEncoding;
 
-    PendingScript m_pendingScript;
+    OwnPtrWillBeMember<PendingScript> m_pendingScript;
 
     bool m_parserInserted : 1;
     bool m_isExternalScript : 1;
     bool m_alreadyStarted : 1;
     bool m_haveFiredLoad : 1;
     bool m_willBeParserExecuted : 1; // Same as "The parser will handle executing the script."
     bool m_readyToBeParserExecuted : 1;
     bool m_willExecuteWhenDocumentFinishedParsing : 1;
     bool m_forceAsync : 1;
     bool m_willExecuteInOrder : 1;
 };
 
 ScriptLoader* toScriptLoaderIfPossible(Element*);
 
 } // namespace blink
 
 #endif // ScriptLoader_h