[DevTools] Do not instrument with InspectorInspectorAgent.

Source/core/inspector/InspectorInstrumentation.idl

 /*
 * Copyright (C) 2013 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 278 matching lines @@
 
     [Debugger]
     void scriptExecutionBlockedByCSP(ExecutionContext*, const String& directiveText);
 
     [Resource]
     void didReceiveScriptResponse(ExecutionContext*, unsigned long identifier);
 
     [PageDebugger]
     void didStartProvisionalLoad([Keep] LocalFrame*);
 
-    [Inspector, DOM, Page]
+    [DOM, Page]
     void domContentLoadedEventFired([Keep] LocalFrame*);
 
     [Page]
     void loadEventFired([Keep] LocalFrame*);
 
     [Page]
     void frameAttachedToParent([Keep] LocalFrame*);
 
     [Canvas, Page]
     void frameDetachedFromParent([Keep] LocalFrame*);
@@ skipping 153 matching lines @@
 interface InspectorCanvasInstrumentation {
 
 #include "bindings/core/v8/ScriptValue.h"
 
     [Canvas]
     ScriptValue wrapCanvas2DRenderingContextForInstrumentation(Document*, const ScriptValue&);
 
     [Canvas]
     ScriptValue wrapWebGLRenderingContextForInstrumentation(Document*, const ScriptValue&);
 }