binding: Makes window/frames/self attributes return itself.

third_party/WebKit/Source/core/frame/DOMWindow.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/frame/DOMWindow.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/dom/SecurityContext.h"
@@ skipping 58 matching lines @@
 }
 
 bool DOMWindow::closed() const {
   return m_windowIsClosing || !frame() || !frame()->host();
 }
 
 unsigned DOMWindow::length() const {
   return frame() ? frame()->tree().scopedChildCount() : 0;
 }
 
-DOMWindow* DOMWindow::self() const {
-  if (!frame())
-    return nullptr;
-
-  return frame()->domWindow();
+v8::Local<v8::Object> DOMWindow::self(ScriptState* scriptState) const {
+  return scriptState->context()->Global();
 }
 
 DOMWindow* DOMWindow::opener() const {
   // FIXME: Use FrameTree to get opener as well, to simplify logic here.
   if (!frame() || !frame()->client())
     return nullptr;
 
   Frame* opener = frame()->client()->opener();
   return opener ? opener->domWindow() : nullptr;
 }
@@ skipping 337 matching lines @@
 
   page->focusController().focusDocumentView(frame(), true /* notifyEmbedder */);
 }
 
 DEFINE_TRACE(DOMWindow) {
   visitor->trace(m_location);
   EventTargetWithInlineData::trace(visitor);
 }
 
 }  // namespace blink