Oilpan: Prepare moving InspectorController and InspectorAgents to oilpan.

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 2083 matching lines @@
 {
     // FIXME: Oilpan: .get will be unnecessary if m_document is a Member<>.
     if (!m_documentNodeToIdMap->contains(m_document.get())) {
         RefPtr<TypeBuilder::DOM::Node> root;
         getDocument(errorString, root);
         return errorString->isEmpty();
     }
     return true;
 }
 
+void InspectorDOMAgent::trace(Visitor* visitor)
+{
+    visitor->trace(m_pageAgent);
+#if ENABLE(OILPAN)
+    visitor->trace(m_documentNodeToIdMap);
+    visitor->trace(m_danglingNodeToIdMaps);
+    visitor->trace(m_idToNode);
+#endif
+    visitor->trace(m_idToNodesMap);
+    visitor->trace(m_document);
+    visitor->trace(m_searchResults);
+    visitor->trace(m_history);
+    visitor->trace(m_domEditor);
+    InspectorBaseAgent::trace(visitor);
+}
+
 } // namespace WebCore