Remove FrameHost class

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

 /*
  * Copyright (C) 2006, 2007, 2009, 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 320 matching lines @@
   bool isLocalDOMWindow() const override { return true; }
   bool isRemoteDOMWindow() const override { return false; }
   void warnUnusedPreloads(TimerBase*);
 
   explicit LocalDOMWindow(LocalFrame&);
   void dispose();
 
   void dispatchLoadEvent();
   void clearDocument();
 
-  void willDetachFrameHost();
-
   Member<Document> m_document;
   Member<DOMVisualViewport> m_visualViewport;
   TaskRunnerTimer<LocalDOMWindow> m_unusedPreloadsTimer;
 
   bool m_shouldPrintWhenFinishedLoading;
 
   mutable Member<Screen> m_screen;
   mutable Member<History> m_history;
   mutable Member<BarProp> m_locationbar;
   mutable Member<BarProp> m_menubar;
@@ skipping 28 matching lines @@
   return m_status;
 }
 
 inline String LocalDOMWindow::defaultStatus() const {
   return m_defaultStatus;
 }
 
 }  // namespace blink
 
 #endif  // LocalDOMWindow_h