Oilpan: Prepare moving AsyncCallChain to Oilpan

Source/core/inspector/InspectorOverlayHost.h

 /*
  * Copyright (C) 2013 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
@@ skipping 17 matching lines @@
 
 #ifndef InspectorOverlayHost_h
 #define InspectorOverlayHost_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 
 namespace blink {
 
-class InspectorOverlayHost : public RefCounted<InspectorOverlayHost>, public ScriptWrappable {
+class InspectorOverlayHost : public RefCountedWillBeGarbageCollectedFinalized<InspectorOverlayHost>, public ScriptWrappable {
 public:
-    static PassRefPtr<InspectorOverlayHost> create()
+    static PassRefPtrWillBeRawPtr<InspectorOverlayHost> create()
     {
-        return adoptRef(new InspectorOverlayHost());
+        return adoptRefWillBeNoop(new InspectorOverlayHost());
     }
     ~InspectorOverlayHost();
+    void trace(Visitor*);
 
     void resume();
     void stepOver();
 
-    class Listener {
+    class Listener : public WillBeGarbageCollectedMixin {
     public:
         virtual ~Listener() { }
         virtual void overlayResumed() = 0;
         virtual void overlaySteppedOver() = 0;
     };
     void setListener(Listener* listener) { m_listener = listener; }
 
 private:
     InspectorOverlayHost();
 
-    Listener* m_listener;
+    RawPtrWillBeMember<Listener> m_listener;
 };
 
 } // namespace blink
 
 #endif // !defined(InspectorOverlayHost_h)