DevTools: implement enable/disable commands in DOMAgent

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 94 matching lines @@
     virtual ~InspectorDOMAgent();
 
     virtual void setFrontend(InspectorFrontend*) OVERRIDE;
     virtual void clearFrontend() OVERRIDE;
     virtual void restore() OVERRIDE;
 
     Vector<Document*> documents();
     void reset();
 
     // Methods called from the frontend for DOM nodes inspection.
+    virtual void enable(ErrorString*) OVERRIDE;
+    virtual void disable(ErrorString*) OVERRIDE;
     virtual void querySelector(ErrorString*, int nodeId, const String& selectors, int* elementId) OVERRIDE;
     virtual void querySelectorAll(ErrorString*, int nodeId, const String& selectors, RefPtr<TypeBuilder::Array<int> >& result) OVERRIDE;
     virtual void getDocument(ErrorString*, RefPtr<TypeBuilder::DOM::Node>& root) OVERRIDE;
     virtual void requestChildNodes(ErrorString*, int nodeId, const int* depth) OVERRIDE;
     virtual void setAttributeValue(ErrorString*, int elementId, const String& name, const String& value) OVERRIDE;
     virtual void setAttributesAsText(ErrorString*, int elementId, const String& text, const String* name) OVERRIDE;
     virtual void removeAttribute(ErrorString*, int elementId, const String& name) OVERRIDE;
     virtual void removeNode(ErrorString*, int nodeId) OVERRIDE;
     virtual void setNodeName(ErrorString*, int nodeId, const String& name, int* newId) OVERRIDE;
     virtual void getOuterHTML(ErrorString*, int nodeId, WTF::String* outerHTML) OVERRIDE;
@@ skipping 73 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 44 matching lines @@
     OwnPtr<HighlightConfig> m_inspectModeHighlightConfig;
     OwnPtr<InspectorHistory> m_history;
     OwnPtr<DOMEditor> m_domEditor;
     bool m_suppressAttributeModifiedEvent;
 };
 
 
 } // namespace WebCore
 
 #endif // !defined(InspectorDOMAgent_h)