DevTools: disable DOMDebuggerAgent when DOMAgent or DebuggerAgent were disabled.

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 217 matching lines @@
 InspectorDOMAgent::InspectorDOMAgent(InspectorPageAgent* pageAgent, InjectedScriptManager* injectedScriptManager, InspectorOverlay* overlay)
     : InspectorBaseAgent<InspectorDOMAgent>("DOM")
     , m_pageAgent(pageAgent)
     , m_injectedScriptManager(injectedScriptManager)
     , m_overlay(overlay)
     , m_frontend(0)
     , m_domListener(0)
     , m_lastNodeId(1)
     , m_searchingForNode(NotSearching)
     , m_suppressAttributeModifiedEvent(false)
+    , m_listener(0)
 {
 }
 
 InspectorDOMAgent::~InspectorDOMAgent()
 {
     reset();
     ASSERT(m_searchingForNode == NotSearching);
 }
 
 void InspectorDOMAgent::setFrontend(InspectorFrontend* frontend)
@@ skipping 231 matching lines @@
     }
 
     return element;
 }
 
 void InspectorDOMAgent::enable(ErrorString*)
 {
     if (enabled())
         return;
     m_state->setBoolean(DOMAgentState::domAgentEnabled, true);
+    if (m_listener)
+        m_listener->domAgentWasEnabled();
 }
 
 bool InspectorDOMAgent::enabled() const
 {
     return m_state->getBoolean(DOMAgentState::domAgentEnabled);
 }
 
 void InspectorDOMAgent::disable(ErrorString*)
 {
     if (!enabled())
         return;
     m_state->setBoolean(DOMAgentState::domAgentEnabled, false);
     reset();
+    if (m_listener)
+        m_listener->domAgentWasDisabled();
 }
 
 void InspectorDOMAgent::getDocument(ErrorString* errorString, RefPtr<TypeBuilder::DOM::Node>& root)
 {
     // Backward compatibility. Mark agent as enabled when it requests document.
     enable(errorString);
 
     if (!m_document) {
         *errorString = "Document is not available";
         return;
@@ skipping 1572 matching lines @@
     if (!m_documentNodeToIdMap.contains(m_document)) {
         RefPtr<TypeBuilder::DOM::Node> root;
         getDocument(errorString, root);
         return errorString->isEmpty();
     }
     return true;
 }
 
 } // namespace WebCore