WTF::notFound looks too much like a local variable.

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 441 matching lines @@
     pauseOnNativeEventIfNeeded(eventData.release(), m_debuggerAgent->canBreakProgram());
 }
 
 void InspectorDOMDebuggerAgent::didFireWebGLWarning()
 {
     pauseOnNativeEventIfNeeded(preparePauseOnNativeEventData(false, webglWarningFiredEventName), m_debuggerAgent->canBreakProgram());
 }
 
 void InspectorDOMDebuggerAgent::didFireWebGLErrorOrWarning(const String& message)
 {
-    if (message.findIgnoringCase("error") != WTF::notFound)
+    if (message.findIgnoringCase("error") != WTF::kNotFound)
         didFireWebGLError(String());
     else
         didFireWebGLWarning();
 }
 
 void InspectorDOMDebuggerAgent::setXHRBreakpoint(ErrorString*, const String& url)
 {
     if (url.isEmpty()) {
         m_state->setBoolean(DOMDebuggerAgentState::pauseOnAllXHRs, true);
         return;
@@ skipping 41 matching lines @@
 }
 
 void InspectorDOMDebuggerAgent::clear()
 {
     m_domBreakpoints.clear();
     m_pauseInNextEventListener = false;
 }
 
 } // namespace WebCore