LocalDOMWindow::reset doesn't need to notify contextDestroyed()

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

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 480 matching lines @@
   m_properties.remove(property);
 }
 
 void LocalDOMWindow::registerEventListenerObserver(
     EventListenerObserver* eventListenerObserver) {
   m_eventListenerObservers.add(eventListenerObserver);
 }
 
 void LocalDOMWindow::reset() {
   DCHECK(document());
-  // Since |Document| class has multiple |LifecycleNotifier| as base class,
-  // we need to have |static_cast<ExecutionContext>| here.
-  static_cast<ExecutionContext*>(document())->notifyContextDestroyed();
+  DCHECK(document()->isContextDestroyed());
   frameDestroyed();
 
   m_screen = nullptr;
   m_history = nullptr;
   m_locationbar = nullptr;
   m_menubar = nullptr;
   m_personalbar = nullptr;
   m_scrollbars = nullptr;
   m_statusbar = nullptr;
   m_toolbar = nullptr;
@@ skipping 1058 matching lines @@
 
 LocalFrame* LocalDOMWindow::frame() const {
   // If the LocalDOMWindow still has a frame reference, that frame must point
   // back to this LocalDOMWindow: otherwise, it's easy to get into a situation
   // where script execution leaks between different LocalDOMWindows.
   SECURITY_DCHECK(!m_frame || m_frame->domWindow() == this);
   return m_frame;
 }
 
 }  // namespace blink