Extract a DOMWindow interface from LocalDOMWindow and use it in the idl.

Source/bindings/core/v8/BindingSecurity.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 54 matching lines @@
         exceptionState.throwSecurityError(targetDocument->domWindow()->sanitizedCrossDomainAccessErrorMessage(callingWindow), targetDocument->domWindow()->crossDomainAccessErrorMessage(callingWindow));
     return false;
 }
 
 static bool canAccessDocument(v8::Isolate* isolate, Document* targetDocument, SecurityReportingOption reportingOption = ReportSecurityError)
 {
     LocalDOMWindow* callingWindow = callingDOMWindow(isolate);
     if (isDocumentAccessibleFromDOMWindow(targetDocument, callingWindow))
         return true;
 
+    // FIXME: This logic looks unnecessarily convoluted.
     if (reportingOption == ReportSecurityError && targetDocument->domWindow()) {
         if (LocalFrame* frame = targetDocument->frame())
-            frame->domWindow()->printErrorMessage(targetDocument->domWindow()->crossDomainAccessErrorMessage(callingWindow));
+            frame->localDOMWindow()->printErrorMessage(targetDocument->domWindow()->crossDomainAccessErrorMessage(callingWindow));
     }
 
     return false;
 }
 
 bool BindingSecurity::shouldAllowAccessToFrame(v8::Isolate* isolate, Frame* target, SecurityReportingOption reportingOption)
 {
     if (!target || !target->isLocalFrame())
         return false;
     return canAccessDocument(isolate, toLocalFrame(target)->document(), reportingOption);
 }
 
 bool BindingSecurity::shouldAllowAccessToFrame(v8::Isolate* isolate, Frame* target, ExceptionState& exceptionState)
 {
     if (!target || !target->isLocalFrame())
         return false;
     return canAccessDocument(isolate, toLocalFrame(target)->document(), exceptionState);
 }
 
 bool BindingSecurity::shouldAllowAccessToNode(v8::Isolate* isolate, Node* target, ExceptionState& exceptionState)
 {
     return target && canAccessDocument(isolate, &target->document(), exceptionState);
 }
 
 }