blink: Cleanup core class forward declarations

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 27 matching lines @@
 #include <memory>
 
 namespace blink {
 
 class CustomElementRegistry;
 class DOMWindowEventQueue;
 class DOMWindowProperty;
 class DocumentInit;
 class EventListener;
 class EventQueue;
-class ExceptionState;
 class FrameConsole;
-class IntRect;
 class MessageEvent;
 class Page;
 class PostMessageTimer;
 class SecurityOrigin;
 class SourceLocation;
 class DOMVisualViewport;
 
 enum PageshowEventPersistence {
   PageshowEventNotPersisted = 0,
   PageshowEventPersisted = 1
@@ skipping 244 matching lines @@
   return m_status;
 }
 
 inline String LocalDOMWindow::defaultStatus() const {
   return m_defaultStatus;
 }
 
 }  // namespace blink
 
 #endif  // LocalDOMWindow_h