Tried using CrossThreadPersistent for workerDebuggerAgents

Source/core/inspector/DOMEditor.h

Index: Source/core/inspector/DOMEditor.h
diff --git a/Source/core/inspector/DOMEditor.h b/Source/core/inspector/DOMEditor.h
index b0be0cf7d1934b408b173d91130eef0b4d17138c..e9b683baa0ee1f6ab2558178bdd046520452a4d9 100644
--- a/Source/core/inspector/DOMEditor.h
+++ b/Source/core/inspector/DOMEditor.h
@@ -31,6 +31,7 @@
 #ifndef DOMEditor_h
 #define DOMEditor_h
 
+#include "platform/heap/Handle.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
@@ -43,11 +44,13 @@ class Text;
 
 typedef String ErrorString;
 
-class DOMEditor {
-    WTF_MAKE_NONCOPYABLE(DOMEditor); WTF_MAKE_FAST_ALLOCATED;
+class DOMEditor FINAL : public NoBaseWillBeGarbageCollected<DOMEditor> {
+    WTF_MAKE_NONCOPYABLE(DOMEditor);
+    WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
 public:
     explicit DOMEditor(InspectorHistory*);
-    ~DOMEditor();
+
+    void trace(Visitor*);
 
     bool insertBefore(Node* parentNode, PassRefPtr<Node>, Node* anchorNode, ExceptionState&);
     bool removeChild(Node* parentNode, Node*, ExceptionState&);
@@ -76,7 +79,7 @@ private:
     class ReplaceChildNodeAction;
     class SetNodeValueAction;
 
-    InspectorHistory* m_history;
+    RawPtrWillBeMember<InspectorHistory> m_history;
 };