Merge 130910 - Web Inspector: protect node in the InspectorDOMNode::inspect

Source/WebCore/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 939 matching lines @@
     if (!m_searchingForNode)
         return false;
 
     if (Node* node = m_overlay->highlightedNode()) {
         inspect(node);
         return true;
     }
     return false;
 }
 
-void InspectorDOMAgent::inspect(Node* node)
+void InspectorDOMAgent::inspect(Node* inspectedNode)
 {
     ErrorString error;
+    RefPtr<Node> node = inspectedNode;
     setSearchingForNode(&error, false, 0);
 
     if (node->nodeType() != Node::ELEMENT_NODE && node->nodeType() != Node::DOCUMENT_NODE)
         node = node->parentNode();
     m_nodeToFocus = node;
 
     focusNode();
 }
 
 void InspectorDOMAgent::focusNode()
@@ skipping 611 matching lines @@
     InjectedScript injectedScript = m_injectedScriptManager->injectedScriptFor(mainWorldScriptState(frame));
     if (injectedScript.hasNoValue())
         return 0;
 
     return injectedScript.wrapNode(node, objectGroup);
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(INSPECTOR)