DevTools: disable DOMDebuggerAgent when DOMAgent or DebuggerAgent were disabled.

Source/core/inspector/InspectorDOMAgent.h

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 136 matching lines @@
     virtual void redo(ErrorString*) OVERRIDE;
     virtual void markUndoableState(ErrorString*) OVERRIDE;
     virtual void focus(ErrorString*, int nodeId) OVERRIDE;
     virtual void setFileInputFiles(ErrorString*, int nodeId, const RefPtr<JSONArray>& files) OVERRIDE;
     virtual void getBoxModel(ErrorString*, int nodeId, RefPtr<TypeBuilder::DOM::BoxModel>&) OVERRIDE;
     virtual void getNodeForLocation(ErrorString*, int x, int y, int* nodeId) OVERRIDE;
     virtual void getRelayoutBoundary(ErrorString*, int nodeId, int* relayoutBoundaryNodeId) OVERRIDE;
 
     static void getEventListeners(EventTarget*, Vector<EventListenerInfo>& listenersArray, bool includeAncestors);
 
+    class Listener {
+    public:
+        virtual ~Listener() { }
+        virtual void domAgentWasEnabled() = 0;
+        virtual void domAgentWasDisabled() = 0;
+    };
+    void setListener(Listener* listener) { m_listener = listener; }
+
+    bool enabled() const;
+
     // Methods called from the InspectorInstrumentation.
     void setDocument(Document*);
     void releaseDanglingNodes();
 
     void domContentLoadedEventFired(LocalFrame*);
     void didCommitLoad(LocalFrame*, DocumentLoader*);
 
     void didInsertDOMNode(Node*);
     void willRemoveDOMNode(Node*);
     void willModifyDOMAttr(Element*, const AtomicString& oldValue, const AtomicString& newValue);
@@ skipping 33 matching lines @@
 
     Node* assertNode(ErrorString*, int nodeId);
     Element* assertElement(ErrorString*, int nodeId);
     Document* assertDocument(ErrorString*, int nodeId);
 
 private:
     enum SearchMode { NotSearching, SearchingForNormal, SearchingForUAShadow };
 
     InspectorDOMAgent(InspectorPageAgent*, InjectedScriptManager*, InspectorOverlay*);
 
-    bool enabled() const;
     void setSearchingForNode(ErrorString*, SearchMode, JSONObject* highlightConfig);
     PassOwnPtr<HighlightConfig> highlightConfigFromInspectorObject(ErrorString*, JSONObject* highlightInspectorObject);
 
     // Node-related methods.
     typedef HashMap<RefPtr<Node>, int> NodeToIdMap;
     int bind(Node*, NodeToIdMap*);
     void unbind(Node*, NodeToIdMap*);
 
     Node* assertEditableNode(ErrorString*, int nodeId);
     Element* assertEditableElement(ErrorString*, int nodeId);
@@ skipping 38 matching lines @@
     int m_lastNodeId;
     RefPtr<Document> m_document;
     typedef HashMap<String, Vector<RefPtr<Node> > > SearchResults;
     SearchResults m_searchResults;
     OwnPtr<RevalidateStyleAttributeTask> m_revalidateStyleAttrTask;
     SearchMode m_searchingForNode;
     OwnPtr<HighlightConfig> m_inspectModeHighlightConfig;
     OwnPtr<InspectorHistory> m_history;
     OwnPtr<DOMEditor> m_domEditor;
     bool m_suppressAttributeModifiedEvent;
+    Listener* m_listener;
 };
 
 
 } // namespace WebCore
 
 #endif // !defined(InspectorDOMAgent_h)