Tried using CrossThreadPersistent for workerDebuggerAgents

Source/core/inspector/InspectorCSSAgent.cpp

Index: Source/core/inspector/InspectorCSSAgent.cpp
diff --git a/Source/core/inspector/InspectorCSSAgent.cpp b/Source/core/inspector/InspectorCSSAgent.cpp
index b2b944ca10f3dfe542a590bbadb407b19f17d4ea..c6d6b7fcd522f05a27ef23c2e2275f53e1bbb0b7 100644
--- a/Source/core/inspector/InspectorCSSAgent.cpp
+++ b/Source/core/inspector/InspectorCSSAgent.cpp
@@ -202,7 +202,7 @@ public:
         return String::format("SetStyleSheetText %s", m_styleSheet->id().utf8().data());
     }
 
-    virtual void merge(PassRefPtr<Action> action) OVERRIDE
+    virtual void merge(PassRefPtrWillBeRawPtr<Action> action) OVERRIDE
     {
         ASSERT(action->mergeId() == mergeId());
 
@@ -210,8 +210,14 @@ public:
         m_text = other->m_text;
     }
 
+    virtual void trace(Visitor* visitor) OVERRIDE
+    {
+        visitor->trace(m_styleSheet);
+        InspectorCSSAgent::StyleSheetAction::trace(visitor);
+    }
+
 private:
-    RefPtr<InspectorStyleSheetBase> m_styleSheet;
+    RefPtrWillBeMember<InspectorStyleSheetBase> m_styleSheet;
     String m_text;
     String m_oldText;
 };
@@ -258,7 +264,7 @@ public:
         return String::format("SetPropertyText %s:%u:%s", m_styleSheet->id().utf8().data(), m_propertyIndex, m_overwrite ? "true" : "false");
     }
 
-    virtual void merge(PassRefPtr<Action> action) OVERRIDE
+    virtual void merge(PassRefPtrWillBeRawPtr<Action> action) OVERRIDE
     {
         ASSERT(action->mergeId() == mergeId());
 
@@ -266,8 +272,14 @@ public:
         m_text = other->m_text;
     }
 
+    virtual void trace(Visitor* visitor) OVERRIDE
+    {
+        visitor->trace(m_styleSheet);
+        InspectorCSSAgent::StyleSheetAction::trace(visitor);
+    }
+
 private:
-    RefPtr<InspectorStyleSheetBase> m_styleSheet;
+    RefPtrWillBeMember<InspectorStyleSheetBase> m_styleSheet;
     InspectorCSSId m_cssId;
     unsigned m_propertyIndex;
     String m_text;
@@ -304,8 +316,14 @@ public:
         return m_styleSheet->setRuleSelector(m_cssId, m_selector, exceptionState);
     }
 
+    virtual void trace(Visitor* visitor) OVERRIDE
+    {
+        visitor->trace(m_styleSheet);
+        InspectorCSSAgent::StyleSheetAction::trace(visitor);
+    }
+
 private:
-    RefPtr<InspectorStyleSheet> m_styleSheet;
+    RefPtrWillBeMember<InspectorStyleSheet> m_styleSheet;
     InspectorCSSId m_cssId;
     String m_selector;
     String m_oldSelector;
@@ -340,10 +358,16 @@ public:
         return true;
     }
 
+    virtual void trace(Visitor* visitor) OVERRIDE
+    {
+        visitor->trace(m_styleSheet);
+        InspectorCSSAgent::StyleSheetAction::trace(visitor);
+    }
+
     InspectorCSSId newRuleId() { return m_newId; }
 
 private:
-    RefPtr<InspectorStyleSheet> m_styleSheet;
+    RefPtrWillBeMember<InspectorStyleSheet> m_styleSheet;
     InspectorCSSId m_newId;
     String m_selector;
     String m_oldSelector;
@@ -396,7 +420,7 @@ void InspectorCSSAgent::clearFrontend()
 void InspectorCSSAgent::discardAgent()
 {
     m_domAgent->setDOMListener(0);
-    m_domAgent = 0;
+    m_domAgent = nullptr;
 }
 
 void InspectorCSSAgent::restore()
@@ -578,7 +602,7 @@ void InspectorCSSAgent::setActiveStyleSheets(Document* document, const Vector<CS
 
     for (HashSet<CSSStyleSheet*>::iterator it = removedSheets.begin(); it != removedSheets.end(); ++it) {
         CSSStyleSheet* cssStyleSheet = *it;
-        RefPtr<InspectorStyleSheet> inspectorStyleSheet = m_cssStyleSheetToInspectorStyleSheet.get(cssStyleSheet);
+        RefPtrWillBeRawPtr<InspectorStyleSheet> inspectorStyleSheet = m_cssStyleSheetToInspectorStyleSheet.get(cssStyleSheet);
         ASSERT(inspectorStyleSheet);
 
         documentCSSStyleSheets->remove(cssStyleSheet);
@@ -818,7 +842,7 @@ void InspectorCSSAgent::setStyleSheetText(ErrorString* errorString, const String
     }
 
     TrackExceptionState exceptionState;
-    m_domAgent->history()->perform(adoptRef(new SetStyleSheetTextAction(inspectorStyleSheet, text)), exceptionState);
+    m_domAgent->history()->perform(adoptRefWillBeNoop(new SetStyleSheetTextAction(inspectorStyleSheet, text)), exceptionState);
     *errorString = InspectorDOMAgent::toErrorString(exceptionState);
 }
 
@@ -880,7 +904,7 @@ void InspectorCSSAgent::setPropertyText(ErrorString* errorString, const String&
     }
 
     TrackExceptionState exceptionState;
-    bool success = m_domAgent->history()->perform(adoptRef(new SetPropertyTextAction(inspectorStyleSheet, compoundId, propertyIndex, text, overwrite)), exceptionState);
+    bool success = m_domAgent->history()->perform(adoptRefWillBeNoop(new SetPropertyTextAction(inspectorStyleSheet, compoundId, propertyIndex, text, overwrite)), exceptionState);
     if (success)
         result = inspectorStyleSheet->buildObjectForStyle(inspectorStyleSheet->styleForId(compoundId));
     *errorString = InspectorDOMAgent::toErrorString(exceptionState);
@@ -901,7 +925,7 @@ void InspectorCSSAgent::setRuleSelector(ErrorString* errorString, const String&
     }
 
     TrackExceptionState exceptionState;
-    bool success = m_domAgent->history()->perform(adoptRef(new SetRuleSelectorAction(inspectorStyleSheet, compoundId, selector)), exceptionState);
+    bool success = m_domAgent->history()->perform(adoptRefWillBeNoop(new SetRuleSelectorAction(inspectorStyleSheet, compoundId, selector)), exceptionState);
     if (success) {
         CSSStyleRule* rule = inspectorStyleSheet->ruleForId(compoundId);
         result = inspectorStyleSheet->buildObjectForRule(rule, buildMediaListChain(rule));
@@ -941,7 +965,7 @@ void InspectorCSSAgent::addRule(ErrorString* errorString, const String& styleShe
         return;
 
     TrackExceptionState exceptionState;
-    RefPtr<AddRuleAction> action = adoptRef(new AddRuleAction(inspectorStyleSheet, selector));
+    RefPtrWillBeRawPtr<AddRuleAction> action = adoptRefWillBeNoop(new AddRuleAction(inspectorStyleSheet, selector));
     bool success = m_domAgent->history()->perform(action, exceptionState);
     if (!success) {
         *errorString = InspectorDOMAgent::toErrorString(exceptionState);
@@ -1090,7 +1114,7 @@ InspectorStyleSheetForInlineStyle* InspectorCSSAgent::asInspectorStyleSheet(Elem
         return 0;
 
     String newStyleSheetId = String::number(m_lastStyleSheetId++);
-    RefPtr<InspectorStyleSheetForInlineStyle> inspectorStyleSheet = InspectorStyleSheetForInlineStyle::create(newStyleSheetId, element, this);
+    RefPtrWillBeRawPtr<InspectorStyleSheetForInlineStyle> inspectorStyleSheet = InspectorStyleSheetForInlineStyle::create(newStyleSheetId, element, this);
     m_idToInspectorStyleSheetForInlineStyle.set(newStyleSheetId, inspectorStyleSheet);
     m_nodeToInspectorStyleSheet.set(element, inspectorStyleSheet);
     return inspectorStyleSheet.get();
@@ -1145,7 +1169,7 @@ void InspectorCSSAgent::collectStyleSheets(CSSStyleSheet* styleSheet, Vector<CSS
 
 InspectorStyleSheet* InspectorCSSAgent::bindStyleSheet(CSSStyleSheet* styleSheet)
 {
-    RefPtr<InspectorStyleSheet> inspectorStyleSheet = m_cssStyleSheetToInspectorStyleSheet.get(styleSheet);
+    RefPtrWillBeRawPtr<InspectorStyleSheet> inspectorStyleSheet = m_cssStyleSheetToInspectorStyleSheet.get(styleSheet);
     if (!inspectorStyleSheet) {
         String id = String::number(m_lastStyleSheetId++);
         Document* document = styleSheet->ownerDocument();
@@ -1177,7 +1201,7 @@ InspectorStyleSheet* InspectorCSSAgent::viaInspectorStyleSheet(Document* documen
     if (!document->isHTMLDocument() && !document->isSVGDocument())
         return 0;
 
-    RefPtr<InspectorStyleSheet> inspectorStyleSheet = m_documentToViaInspectorStyleSheet.get(document);
+    RefPtrWillBeRawPtr<InspectorStyleSheet> inspectorStyleSheet = m_documentToViaInspectorStyleSheet.get(document);
     if (inspectorStyleSheet || !createIfAbsent)
         return inspectorStyleSheet.get();
 
@@ -1439,5 +1463,19 @@ void InspectorCSSAgent::resetPseudoStates()
         (*it)->setNeedsStyleRecalc(SubtreeStyleChange);
 }
 
+void InspectorCSSAgent::trace(Visitor* visitor)
+{
+    visitor->trace(m_domAgent);
+    visitor->trace(m_pageAgent);
+    visitor->trace(m_resourceAgent);
+    visitor->trace(m_idToInspectorStyleSheet);
+    visitor->trace(m_idToInspectorStyleSheetForInlineStyle);
+    visitor->trace(m_cssStyleSheetToInspectorStyleSheet);
+    visitor->trace(m_inspectorUserAgentStyleSheet);
+    visitor->trace(m_nodeToInspectorStyleSheet);
+    visitor->trace(m_documentToViaInspectorStyleSheet);
+    InspectorBaseAgent::trace(visitor);
+}
+
 } // namespace WebCore