blink: Cleanup core class forward declarations

third_party/WebKit/Source/core/html/HTMLMapElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 10 matching lines @@
  */
 
 #ifndef HTMLMapElement_h
 #define HTMLMapElement_h
 
 #include "core/CoreExport.h"
 #include "core/html/HTMLElement.h"
 
 namespace blink {
 
-class HitTestResult;
 class HTMLImageElement;
 
 class CORE_EXPORT HTMLMapElement final : public HTMLElement {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   DECLARE_NODE_FACTORY(HTMLMapElement);
   ~HTMLMapElement() override;
 
   const AtomicString& getName() const { return m_name; }
@@ skipping 13 matching lines @@
 
   InsertionNotificationRequest insertedInto(ContainerNode*) override;
   void removedFrom(ContainerNode*) override;
 
   AtomicString m_name;
 };
 
 }  // namespace blink
 
 #endif  // HTMLMapElement_h