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

Source/web/WebLocalFrameImpl.cpp

 /*
  * Copyright (C) 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 135 matching lines @@
 #include "core/rendering/RenderObject.h"
 #include "core/rendering/RenderTreeAsText.h"
 #include "core/rendering/RenderView.h"
 #include "core/rendering/style/StyleInheritedData.h"
 #include "core/timing/Performance.h"
 #include "modules/geolocation/GeolocationController.h"
 #include "modules/notifications/NotificationPermissionClient.h"
 #include "modules/push_messaging/PushController.h"
 #include "modules/screen_orientation/ScreenOrientationController.h"
 #include "modules/speech/SpeechRecognitionController.h"
+#include "platform/ScriptForbiddenScope.h"
 #include "platform/TraceEvent.h"
 #include "platform/UserGestureIndicator.h"
 #include "platform/clipboard/ClipboardUtilities.h"
 #include "platform/fonts/FontCache.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/GraphicsLayerClient.h"
 #include "platform/graphics/skia/SkiaUtils.h"
 #include "platform/heap/Handle.h"
 #include "platform/network/ResourceRequest.h"
 #include "platform/scroll/ScrollTypes.h"
@@ skipping 534 matching lines @@
 
 void WebLocalFrameImpl::dispatchUnloadEvent()
 {
     if (!frame())
         return;
     frame()->loader().dispatchUnloadEvent();
 }
 
 NPObject* WebLocalFrameImpl::windowObject() const
 {
-    if (!frame())
+    if (!frame() || ScriptForbiddenScope::isScriptForbidden())
         return 0;
     return frame()->script().windowScriptNPObject();
 }
 
 void WebLocalFrameImpl::bindToWindowObject(const WebString& name, NPObject* object)
 {
     bindToWindowObject(name, object, 0);
 }
 
 void WebLocalFrameImpl::bindToWindowObject(const WebString& name, NPObject* object, void*)
@@ skipping 1291 matching lines @@
 {
     m_frameWidget = frameWidget;
 }
 
 WebFrameWidgetImpl* WebLocalFrameImpl::frameWidget() const
 {
     return m_frameWidget;
 }
 
 } // namespace blink