Revert of Fix Runtime.executionContextCreated for crafted iframes.

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 196 matching lines @@
 
     [Timeline, Inline=FastReturn]
     InspectorInstrumentationCookie willEvaluateScript([Keep] LocalFrame*, const String& url, int lineNumber);
 
     [Timeline, Inline=FastReturn]
     void didEvaluateScript(const InspectorInstrumentationCookie&);
 
     [PageRuntime, Inline=FastReturn]
     void didCreateIsolatedContext([Keep] LocalFrame*, ScriptState*, SecurityOrigin*);
 
-    [PageRuntime, Inline=FastReturn]
-    void didCreateMainWorldContext([Keep] LocalFrame*, ScriptState*, SecurityOrigin*);
-
     [DOMDebugger, Debugger, Timeline, Inline=FastReturn]
     InspectorInstrumentationCookie willFireTimer([Keep] ExecutionContext*, int timerId);
 
     [Debugger, Timeline, Inline=FastReturn]
     void didFireTimer(const InspectorInstrumentationCookie&);
 
     [Timeline, Inline=FastReturn]
     void didInvalidateLayout([Keep] LocalFrame*);
 
     [Timeline, Inline=FastReturn]
@@ skipping 302 matching lines @@
 interface InspectorCanvasInstrumentation {
 
 #include "bindings/core/v8/ScriptValue.h"
 
     [Canvas]
     ScriptValue wrapCanvas2DRenderingContextForInstrumentation(Document*, const ScriptValue&);
 
     [Canvas]
     ScriptValue wrapWebGLRenderingContextForInstrumentation(Document*, const ScriptValue&);
 }