Revert of Revert of Reland factor out window proxy management portions of ScriptController.

Source/bindings/core/v8/NPV8Object.cpp

 /*
  * Copyright (C) 2004, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2007, 2008, 2009 Google, Inc.  All rights reserved.
  * Copyright (C) 2014 Opera Software ASA. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 22 matching lines @@
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8GCController.h"
 #include "bindings/core/v8/V8NPUtils.h"
 #include "bindings/core/v8/V8ObjectConstructor.h"
 #include "bindings/core/v8/V8ScriptRunner.h"
 #include "bindings/core/v8/WrapperTypeInfo.h"
 #include "bindings/core/v8/npruntime_impl.h"
 #include "bindings/core/v8/npruntime_priv.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/LocalFrame.h"
+#include "platform/ScriptForbiddenScope.h"
 #include "platform/UserGestureIndicator.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/StringExtras.h"
 #include "wtf/text/WTFString.h"
 #include <stdio.h>
 
 using namespace blink;
 
 namespace blink {
 
@@ skipping 282 matching lines @@
 bool _NPN_Evaluate(NPP npp, NPObject* npObject, NPString* npScript, NPVariant* result)
 {
     // FIXME: Give the embedder a way to control this.
     bool popupsAllowed = false;
     return _NPN_EvaluateHelper(npp, popupsAllowed, npObject, npScript, result);
 }
 
 bool _NPN_EvaluateHelper(NPP npp, bool popupsAllowed, NPObject* npObject, NPString* npScript, NPVariant* result)
 {
     VOID_TO_NPVARIANT(*result);
+    if (ScriptForbiddenScope::isScriptForbidden())
+        return false;
+
     if (!npObject)
         return false;
 
     V8NPObject* v8NpObject = npObjectToV8NPObject(npObject);
     if (!v8NpObject)
         return false;
 
     v8::Isolate* isolate = v8::Isolate::GetCurrent();
     ScriptState* scriptState = mainWorldScriptState(isolate, npp, npObject);
     if (!scriptState)
@@ skipping 256 matching lines @@
 
         convertV8ObjectToNPVariant(isolate, resultObject, npObject, result);
         return true;
     }
 
     if (NP_CLASS_STRUCT_VERSION_HAS_CTOR(npObject->_class) && npObject->_class->construct)
         return npObject->_class->construct(npObject, arguments, argumentCount, result);
 
     return false;
 }