Remove some dead code from inspector/

Source/core/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 525 matching lines @@
     if (m_revalidateStyleAttrTask)
         m_revalidateStyleAttrTask->reset();
 }
 
 void InspectorDOMAgent::discardBackendBindings()
 {
     m_backendIdToNode.clear();
     m_nodeGroupToBackendIdMap.clear();
 }
 
-int InspectorDOMAgent::pushNodeToFrontend(ErrorString* errorString, int documentNodeId, Node* nodeToPush)
-{
-    Document* document = assertDocument(errorString, documentNodeId);
-    if (!document)
-        return 0;
-    if (nodeToPush->document() != document) {
-        *errorString = "Node is not part of the document with given id";
-        return 0;
-    }
-
-    return pushNodePathToFrontend(nodeToPush);
-}
-
 Node* InspectorDOMAgent::nodeForId(int id)
 {
     if (!id)
         return 0;
 
     HashMap<int, Node*>::iterator it = m_idToNode.find(id);
     if (it != m_idToNode.end())
         return it->value;
     return 0;
 }
@@ skipping 1546 matching lines @@
     if (!m_documentNodeToIdMap.contains(m_document)) {
         RefPtr<TypeBuilder::DOM::Node> root;
         getDocument(errorString, root);
         return errorString->isEmpty();
     }
     return true;
 }
 
 } // namespace WebCore