blink: Cleanup core class forward declarations

third_party/WebKit/Source/core/testing/InternalSettings.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 21 matching lines @@
 #include "core/testing/InternalSettingsGenerated.h"
 #include "platform/geometry/IntSize.h"
 #include "platform/graphics/ImageAnimationPolicy.h"
 #include "platform/heap/Handle.h"
 #include "public/platform/WebDisplayMode.h"
 #include "wtf/Allocator.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
-class Document;
 class ExceptionState;
-class LocalFrame;
 class Page;
 class Settings;
 
 class InternalSettings final : public InternalSettingsGenerated,
                                public Supplement<Page> {
   USING_GARBAGE_COLLECTED_MIXIN(InternalSettings);
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   class Backup {
@@ skipping 99 matching lines @@
   Page* page() const { return m_page; }
   static const char* supplementName();
 
   WeakMember<Page> m_page;
   Backup m_backup;
 };
 
 }  // namespace blink
 
 #endif  // InternalSettings_h