Fix Runtime.executionContextCreated for crafted iframes.

Source/bindings/core/v8/ScriptController.h

 /*
  * Copyright (C) 2008, 2009 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 61 matching lines @@
 
     static PassOwnPtrWillBeRawPtr<ScriptController> create(LocalFrame* frame)
     {
         return adoptPtrWillBeNoop(new ScriptController(frame));
     }
 
     ~ScriptController();
     void trace(Visitor*);
 
     bool initializeMainWorld();
+    bool isMainWorldInitialized();
     WindowProxy* windowProxy(DOMWrapperWorld&);
     WindowProxy* existingWindowProxy(DOMWrapperWorld&);
 
     // Evaluate JavaScript in the main world.
     void executeScriptInMainWorld(const String&, ExecuteScriptPolicy = DoNotExecuteScriptWhenScriptsDisabled);
     void executeScriptInMainWorld(const ScriptSourceCode&, AccessControlStatus = NotSharableCrossOrigin, double* compilationFinishTime = 0);
     v8::Local<v8::Value> executeScriptInMainWorldAndReturnValue(const ScriptSourceCode&);
     v8::Local<v8::Value> executeScriptAndReturnValue(v8::Handle<v8::Context>, const ScriptSourceCode&, AccessControlStatus = NotSharableCrossOrigin, double* compilationFinishTime = 0);
 
     // Executes JavaScript in an isolated world. The script gets its own global scope,
@@ skipping 79 matching lines @@
     // invalidate all sub-objects which are associated with that plugin.
     // The frame keeps a NPObject reference for each item on the list.
     PluginObjectMap m_pluginObjects;
 
     NPObject* m_windowScriptNPObject;
 };
 
 } // namespace blink
 
 #endif // ScriptController_h