Clean up forward declarations in Source/web

Source/web/SpellCheckerClientImpl.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 19 matching lines @@
 
 #ifndef SpellCheckerClientImpl_h
 #define SpellCheckerClientImpl_h
 
 #include "core/page/SpellCheckerClient.h"
 #include "platform/heap/Handle.h"
 #include "platform/text/TextCheckerClient.h"
 
 namespace blink {
 
-class LocalFrame;
-class HTMLInputElement;
 class WebViewImpl;
 
 class SpellCheckerClientImpl final : public SpellCheckerClient, public TextCheckerClient {
 public:
     explicit SpellCheckerClientImpl(WebViewImpl*);
 
     virtual ~SpellCheckerClientImpl();
 
     virtual bool isContinuousSpellCheckingEnabled() override;
     virtual void toggleContinuousSpellChecking() override;
@@ skipping 27 matching lines @@
     enum {
         SpellCheckAutomatic,
         SpellCheckForcedOn,
         SpellCheckForcedOff
     } m_spellCheckThisFieldStatus;
 };
 
 } // namespace blink
 
 #endif