Tried using CrossThreadPersistent for workerDebuggerAgents

Source/core/inspector/InspectorStyleSheet.h

 /*
  * Copyright (C) 2010, 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:
  * 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 34 matching lines @@
 class CSSStyleDeclaration;
 class CSSStyleRule;
 class CSSStyleSheet;
 class Document;
 class Element;
 class ExceptionState;
 class InspectorPageAgent;
 class InspectorResourceAgent;
 class InspectorStyleSheetBase;
 
-typedef WillBePersistentHeapVector<RefPtrWillBeMember<CSSRule> > CSSRuleVector;
+typedef WillBeHeapVector<RefPtrWillBeMember<CSSRule> > CSSRuleVector;
 typedef String ErrorString;
 
 class InspectorCSSId {
 public:
     InspectorCSSId()
         : m_ordinal(0)
     {
     }
 
     InspectorCSSId(const String& styleSheetId, unsigned ordinal)
@@ skipping 67 matching lines @@
     NewLineAndWhitespace& newLineAndWhitespaceDelimiters() const;
     inline Document* ownerDocument() const;
 
     InspectorCSSId m_styleId;
     RefPtrWillBePersistent<CSSStyleDeclaration> m_style;
     InspectorStyleSheetBase* m_parentStyleSheet;
     mutable std::pair<String, String> m_format;
     mutable bool m_formatAcquired;
 };
 
-class InspectorStyleSheetBase : public RefCounted<InspectorStyleSheetBase> {
+class InspectorStyleSheetBase : public RefCountedWillBeGarbageCollectedFinalized<InspectorStyleSheetBase> {
 public:
     class Listener {
     public:
         Listener() { }
         virtual ~Listener() { }
         virtual void styleSheetChanged(InspectorStyleSheetBase*) = 0;
         virtual void willReparseStyleSheet() = 0;
         virtual void didReparseStyleSheet() = 0;
     };
     virtual ~InspectorStyleSheetBase() { }
+    virtual void trace(Visitor*) { }
 
     String id() const { return m_id; }
 
     virtual Document* ownerDocument() const = 0;
     virtual bool setText(const String&, ExceptionState&) = 0;
     virtual bool getText(String* result) const = 0;
     bool setPropertyText(const InspectorCSSId&, unsigned propertyIndex, const String& text, bool overwrite, ExceptionState&);
 
     virtual bool setStyleText(const InspectorCSSId&, const String&) = 0;
     bool getStyleText(const InspectorCSSId&, String*);
@@ skipping 21 matching lines @@
 
 private:
     friend class InspectorStyle;
 
     String m_id;
     Listener* m_listener;
 };
 
 class InspectorStyleSheet : public InspectorStyleSheetBase {
 public:
-    static PassRefPtr<InspectorStyleSheet> create(InspectorPageAgent*, InspectorResourceAgent*, const String& id, PassRefPtrWillBeRawPtr<CSSStyleSheet> pageStyleSheet, TypeBuilder::CSS::StyleSheetOrigin::Enum, const String& documentURL, Listener*);
+    static PassRefPtrWillBeRawPtr<InspectorStyleSheet> create(InspectorPageAgent*, InspectorResourceAgent*, const String& id, PassRefPtrWillBeRawPtr<CSSStyleSheet> pageStyleSheet, TypeBuilder::CSS::StyleSheetOrigin::Enum, const String& documentURL, Listener*);
 
     virtual ~InspectorStyleSheet();
+    virtual void trace(Visitor*) OVERRIDE;
 
     String finalURL() const;
     virtual Document* ownerDocument() const OVERRIDE;
     virtual bool setText(const String&, ExceptionState&) OVERRIDE;
     virtual bool getText(String* result) const OVERRIDE;
     String ruleSelector(const InspectorCSSId&, ExceptionState&);
     bool setRuleSelector(const InspectorCSSId&, const String& selector, ExceptionState&);
     CSSStyleRule* addRule(const String& selector, ExceptionState&);
     bool deleteRule(const InspectorCSSId&, ExceptionState&);
 
@@ skipping 32 matching lines @@
     bool styleSheetTextWithChangedStyle(CSSStyleDeclaration*, const String& newStyleText, String* result);
     bool originalStyleSheetText(String* result) const;
     bool resourceStyleSheetText(String* result) const;
     bool inlineStyleSheetText(String* result) const;
     PassRefPtr<TypeBuilder::Array<TypeBuilder::CSS::Selector> > selectorsFromSource(const CSSRuleSourceData*, const String&);
     PassRefPtr<TypeBuilder::CSS::SelectorList> buildObjectForSelectorList(CSSStyleRule*);
     String url() const;
     bool hasSourceURL() const;
     bool startsAtZero() const;
 
-    InspectorPageAgent* m_pageAgent;
-    InspectorResourceAgent* m_resourceAgent;
-    RefPtrWillBePersistent<CSSStyleSheet> m_pageStyleSheet;
+    RawPtrWillBeMember<InspectorPageAgent> m_pageAgent;
+    RawPtrWillBeMember<InspectorResourceAgent> m_resourceAgent;
+    RefPtrWillBeMember<CSSStyleSheet> m_pageStyleSheet;
     TypeBuilder::CSS::StyleSheetOrigin::Enum m_origin;
     String m_documentURL;
     OwnPtr<ParsedStyleSheet> m_parsedStyleSheet;
     mutable CSSRuleVector m_flatRules;
     mutable String m_sourceURL;
 };
 
 class InspectorStyleSheetForInlineStyle FINAL : public InspectorStyleSheetBase {
 public:
-    static PassRefPtr<InspectorStyleSheetForInlineStyle> create(const String& id, PassRefPtr<Element>, Listener*);
+    static PassRefPtrWillBeRawPtr<InspectorStyleSheetForInlineStyle> create(const String& id, PassRefPtr<Element>, Listener*);
 
     void didModifyElementAttribute();
     virtual Document* ownerDocument() const OVERRIDE;
     virtual bool setText(const String&, ExceptionState&) OVERRIDE;
     virtual bool getText(String* result) const OVERRIDE;
 
     virtual CSSStyleDeclaration* styleForId(const InspectorCSSId& id) const OVERRIDE { ASSERT_UNUSED(id, !id.ordinal()); return inlineStyle(); }
     virtual InspectorCSSId styleId(CSSStyleDeclaration* style) const OVERRIDE { return InspectorCSSId(id(), 0); }
     virtual bool setStyleText(const InspectorCSSId&, const String&) OVERRIDE;
 
+    virtual void trace(Visitor*) OVERRIDE;
+
 protected:
     virtual PassRefPtr<InspectorStyle> inspectorStyleForId(const InspectorCSSId&) OVERRIDE;
     virtual unsigned ruleCount() OVERRIDE { return 1; }
 
     // Also accessed by friend class InspectorStyle.
     virtual bool ensureParsedDataReady() OVERRIDE;
     virtual PassRefPtrWillBeRawPtr<CSSRuleSourceData> ruleSourceDataAt(unsigned ruleIndex) const OVERRIDE { ASSERT_UNUSED(ruleIndex, !ruleIndex); return m_ruleSourceData; }
 
 private:
     InspectorStyleSheetForInlineStyle(const String& id, PassRefPtr<Element>, Listener*);
     CSSStyleDeclaration* inlineStyle() const;
     const String& elementStyleText() const;
     PassRefPtrWillBeRawPtr<CSSRuleSourceData> getStyleAttributeData() const;
 
     RefPtr<Element> m_element;
-    RefPtrWillBePersistent<CSSRuleSourceData> m_ruleSourceData;
+    RefPtrWillBeMember<CSSRuleSourceData> m_ruleSourceData;
     RefPtr<InspectorStyle> m_inspectorStyle;
 
     // Contains "style" attribute value.
     mutable String m_styleText;
     mutable bool m_isStyleTextValid;
 };
 
 
 } // namespace WebCore
 
 WTF_ALLOW_MOVE_AND_INIT_WITH_MEM_FUNCTIONS(WebCore::InspectorStyleProperty);
 
 #endif // !defined(InspectorStyleSheet_h)