Update inspector classes to use OVERRIDE / FINAL when needed

Source/core/inspector/InspectorState.h

 /*
  * Copyright (C) 2011 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 66 matching lines @@
 
     // Gets called from InspectorCompositeState::loadFromCookie().
     void setFromCookie(PassRefPtr<JSONObject>);
 
     friend class InspectorCompositeState;
 
     InspectorStateUpdateListener* m_listener;
     RefPtr<JSONObject> m_properties;
 };
 
-class InspectorCompositeState : public InspectorStateUpdateListener {
+class InspectorCompositeState FINAL : public InspectorStateUpdateListener {
 public:
     InspectorCompositeState(InspectorStateClient* inspectorClient)
         : m_client(inspectorClient)
         , m_stateObject(JSONObject::create())
         , m_isMuted(false)
     {
     }
     virtual ~InspectorCompositeState() { }
 
     void mute();
     void unmute();
 
     InspectorState* createAgentState(const String&);
     void loadFromCookie(const String&);
 
 private:
     typedef HashMap<String, OwnPtr<InspectorState> > InspectorStateMap;
 
     // From InspectorStateUpdateListener.
-    virtual void inspectorStateUpdated();
+    virtual void inspectorStateUpdated() OVERRIDE;
 
     InspectorStateClient* m_client;
     RefPtr<JSONObject> m_stateObject;
     bool m_isMuted;
     InspectorStateMap m_inspectorStateMap;
 };
 
 } // namespace WebCore
 
 #endif // !defined(InspectorState_h)