DevTools: unflake DOM debugger tests

Source/core/inspector/InspectorDOMDebuggerAgent.cpp

 /*
  * 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 103 matching lines @@
     visitor->trace(m_domAgent);
     visitor->trace(m_debuggerAgent);
 #if ENABLE(OILPAN)
     visitor->trace(m_domBreakpoints);
 #endif
     InspectorBaseAgent::trace(visitor);
 }
 
 void InspectorDOMDebuggerAgent::disable(ErrorString*)
 {
-    m_instrumentingAgents->setInspectorDOMDebuggerAgent(nullptr);
+    setEnabled(false);
     m_domBreakpoints.clear();
     m_state->remove(DOMDebuggerAgentState::eventListenerBreakpoints);
     m_state->remove(DOMDebuggerAgentState::xhrBreakpoints);
     m_state->remove(DOMDebuggerAgentState::pauseOnAllXHRs);
 }
 
 void InspectorDOMDebuggerAgent::restore()
 {
     if (m_state->getBoolean(DOMDebuggerAgentState::enabled))
         m_instrumentingAgents->setInspectorDOMDebuggerAgent(this);
@@ skipping 492 matching lines @@
     RefPtr<JSONObject> eventData = JSONObject::create();
     eventData->setString("breakpointURL", breakpointURL);
     eventData->setString("url", url);
     m_debuggerAgent->breakProgram(InspectorFrontend::Debugger::Reason::XHR, eventData.release());
 }
 
 void InspectorDOMDebuggerAgent::didAddBreakpoint()
 {
     if (m_state->getBoolean(DOMDebuggerAgentState::enabled))
         return;
-    m_instrumentingAgents->setInspectorDOMDebuggerAgent(this);
-    m_state->setBoolean(DOMDebuggerAgentState::enabled, true);
+    setEnabled(true);
 }
 
 static bool isEmpty(PassRefPtr<JSONObject> object)
 {
     return object->begin() == object->end();
 }
 
 void InspectorDOMDebuggerAgent::didRemoveBreakpoint()
 {
     if (!m_domBreakpoints.isEmpty())
         return;
     if (!isEmpty(m_state->getObject(DOMDebuggerAgentState::eventListenerBreakpoints)))
         return;
     if (!isEmpty(m_state->getObject(DOMDebuggerAgentState::xhrBreakpoints)))
         return;
     if (m_state->getBoolean(DOMDebuggerAgentState::pauseOnAllXHRs))
         return;
-    m_state->remove(DOMDebuggerAgentState::enabled);
-    m_instrumentingAgents->setInspectorDOMDebuggerAgent(nullptr);
+    setEnabled(false);
+}
+
+void InspectorDOMDebuggerAgent::setEnabled(bool enabled)
+{
+    if (enabled) {
+        m_instrumentingAgents->setInspectorDOMDebuggerAgent(this);
+        m_state->setBoolean(DOMDebuggerAgentState::enabled, true);
+    } else {
+        m_state->remove(DOMDebuggerAgentState::enabled);
+        m_instrumentingAgents->setInspectorDOMDebuggerAgent(nullptr);
+    }
 }
 
 } // namespace blink