Revert of Revert of Revert of Reland factor out window proxy management

Source/web/WebLocalFrameImpl.cpp

Index: Source/web/WebLocalFrameImpl.cpp
diff --git a/Source/web/WebLocalFrameImpl.cpp b/Source/web/WebLocalFrameImpl.cpp
index b2810a241a4528b615bdadbeedf4b89227d506fd..054d85d2d4248bce2b4b8ffbfebecd3d0af9b719 100644
--- a/Source/web/WebLocalFrameImpl.cpp
+++ b/Source/web/WebLocalFrameImpl.cpp
@@ -153,7 +153,6 @@
 #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"
@@ -708,7 +707,7 @@
 
 NPObject* WebLocalFrameImpl::windowObject() const
 {
-    if (!frame() || ScriptForbiddenScope::isScriptForbidden())
+    if (!frame())
         return 0;
     return frame()->script().windowScriptNPObject();
 }