Tried using CrossThreadPersistent for workerDebuggerAgents

Source/core/inspector/InspectorDOMAgent.cpp

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Google Inc. All rights reserved.
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * 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
@@ skipping 162 matching lines @@
 }
 
 static Node* hoveredNodeForEvent(LocalFrame* frame, const PlatformTouchEvent& event, bool ignorePointerEventsNone)
 {
     const Vector<PlatformTouchPoint>& points = event.touchPoints();
     if (!points.size())
         return 0;
     return hoveredNodeForPoint(frame, points[0].pos(), ignorePointerEventsNone);
 }
 
-class RevalidateStyleAttributeTask {
-    WTF_MAKE_FAST_ALLOCATED;
+class RevalidateStyleAttributeTask : public NoBaseWillBeGarbageCollectedFinalized<RevalidateStyleAttributeTask> {
+    WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
 public:
     RevalidateStyleAttributeTask(InspectorDOMAgent*);
     void scheduleFor(Element*);
     void reset() { m_timer.stop(); }
     void onTimer(Timer<RevalidateStyleAttributeTask>*);
+    void trace(Visitor*);
 
 private:
-    InspectorDOMAgent* m_domAgent;
+    RawPtrWillBeMember<InspectorDOMAgent> m_domAgent;
     Timer<RevalidateStyleAttributeTask> m_timer;
     HashSet<RefPtr<Element> > m_elements;
 };
 
 RevalidateStyleAttributeTask::RevalidateStyleAttributeTask(InspectorDOMAgent* domAgent)
     : m_domAgent(domAgent)
     , m_timer(this, &RevalidateStyleAttributeTask::onTimer)
 {
 }
 
 void RevalidateStyleAttributeTask::scheduleFor(Element* element)
 {
     m_elements.add(element);
     if (!m_timer.isActive())
         m_timer.startOneShot(0, FROM_HERE);
 }
 
 void RevalidateStyleAttributeTask::onTimer(Timer<RevalidateStyleAttributeTask>*)
 {
     // The timer is stopped on m_domAgent destruction, so this method will never be called after m_domAgent has been destroyed.
     Vector<Element*> elements;
     for (HashSet<RefPtr<Element> >::iterator it = m_elements.begin(), end = m_elements.end(); it != end; ++it)
         elements.append(it->get());
     m_domAgent->styleAttributeInvalidated(elements);
 
     m_elements.clear();
 }
 
+void RevalidateStyleAttributeTask::trace(Visitor* visitor)
+{
+    visitor->trace(m_domAgent);
+}
+
 String InspectorDOMAgent::toErrorString(ExceptionState& exceptionState)
 {
     if (exceptionState.hadException())
         return DOMException::getErrorName(exceptionState.code()) + " " + exceptionState.message();
     return "";
 }
 
 InspectorDOMAgent::InspectorDOMAgent(InspectorPageAgent* pageAgent, InjectedScriptManager* injectedScriptManager, InspectorOverlay* overlay)
     : InspectorBaseAgent<InspectorDOMAgent>("DOM")
     , m_pageAgent(pageAgent)
@@ skipping 10 matching lines @@
 
 InspectorDOMAgent::~InspectorDOMAgent()
 {
     reset();
     ASSERT(m_searchingForNode == NotSearching);
 }
 
 void InspectorDOMAgent::setFrontend(InspectorFrontend* frontend)
 {
     ASSERT(!m_frontend);
-    m_history = adoptPtr(new InspectorHistory());
-    m_domEditor = adoptPtr(new DOMEditor(m_history.get()));
+    m_history = adoptPtrWillBeNoop(new InspectorHistory());
+    m_domEditor = adoptPtrWillBeNoop(new DOMEditor(m_history.get()));
 
     m_frontend = frontend->dom();
     m_instrumentingAgents->setInspectorDOMAgent(this);
     m_document = m_pageAgent->mainFrame()->document();
 }
 
 void InspectorDOMAgent::clearFrontend()
 {
     ASSERT(m_frontend);
 
@@ skipping 1636 matching lines @@
 }
 
 void InspectorDOMAgent::didInvalidateStyleAttr(Node* node)
 {
     int id = m_documentNodeToIdMap.get(node);
     // If node is not mapped yet -> ignore the event.
     if (!id)
         return;
 
     if (!m_revalidateStyleAttrTask)
-        m_revalidateStyleAttrTask = adoptPtr(new RevalidateStyleAttributeTask(this));
+        m_revalidateStyleAttrTask = adoptPtrWillBeNoop(new RevalidateStyleAttributeTask(this));
     m_revalidateStyleAttrTask->scheduleFor(toElement(node));
 }
 
 void InspectorDOMAgent::didPushShadowRoot(Element* host, ShadowRoot* root)
 {
     if (!host->ownerDocument())
         return;
 
     int hostId = m_documentNodeToIdMap.get(host);
     if (!hostId)
@@ skipping 167 matching lines @@
 bool InspectorDOMAgent::pushDocumentUponHandlelessOperation(ErrorString* errorString)
 {
     if (!m_documentNodeToIdMap.contains(m_document)) {
         RefPtr<TypeBuilder::DOM::Node> root;
         getDocument(errorString, root);
         return errorString->isEmpty();
     }
     return true;
 }
 
+void InspectorDOMAgent::trace(Visitor* visitor)
+{
+    visitor->trace(m_pageAgent);
+    visitor->trace(m_revalidateStyleAttrTask);
+    visitor->trace(m_history);
+    visitor->trace(m_domEditor);
+    InspectorBaseAgent::trace(visitor);
+}
+
 } // namespace WebCore