Update inspector classes to use OVERRIDE / FINAL when needed

Source/core/inspector/PageConsoleAgent.cpp

 /*
  * 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 38 matching lines @@
 {
     m_inspectorDOMAgent = 0;
 }
 
 void PageConsoleAgent::clearMessages(ErrorString* errorString)
 {
     m_inspectorDOMAgent->releaseDanglingNodes();
     InspectorConsoleAgent::clearMessages(errorString);
 }
 
-class InspectableNode : public InjectedScriptHost::InspectableObject {
+class InspectableNode FINAL : public InjectedScriptHost::InspectableObject {
 public:
     explicit InspectableNode(Node* node) : m_node(node) { }
-    virtual ScriptValue get(ScriptState* state)
+    virtual ScriptValue get(ScriptState* state) OVERRIDE
     {
         return InjectedScriptHost::nodeAsScriptValue(state, m_node);
     }
 private:
     Node* m_node;
 };
 
 void PageConsoleAgent::addInspectedNode(ErrorString* errorString, int nodeId)
 {
     Node* node = m_inspectorDOMAgent->nodeForId(nodeId);
     if (!node) {
         *errorString = "nodeId is not valid";
         return;
     }
     while (node->isInShadowTree()) {
         Node* ancestor = node->highestAncestor();
         if (!ancestor->isShadowRoot() || toShadowRoot(ancestor)->type() == ShadowRoot::AuthorShadowRoot)
             break;
         // User agent shadow root, keep climbing up.
         node = toShadowRoot(ancestor)->host();
     }
     m_injectedScriptManager->injectedScriptHost()->addInspectedObject(adoptPtr(new InspectableNode(node)));
 }
 
 } // namespace WebCore