Minor cleanups to includes and fwd decls in core/css/resolver

Source/core/css/resolver/FontBuilder.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Google 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 13 matching lines @@
 #define FontBuilder_h
 
 #include "CSSValueKeywords.h"
 
 #include "core/platform/graphics/FontDescription.h"
 #include "wtf/PassRefPtr.h"
 
 namespace WebCore {
 
 class CSSValue;
-class FontDescription;
 class FontSelector;
-class FontSize;
 class RenderStyle;
 
 class FontDescriptionChangeScope;
 
 class FontBuilder {
     WTF_MAKE_NONCOPYABLE(FontBuilder); WTF_MAKE_FAST_ALLOCATED;
 public:
     FontBuilder();
 
     // FIXME: The name is probably wrong, but matches StyleResolverState callsite for consistency.
@@ skipping 69 matching lines @@
     // object on RenderStyle from various other font-related
     // properties on RenderStyle. Whenever one of those
     // is changed, FontBuilder tracks the need to update
     // style->font() with this bool.
     bool m_fontDirty;
 };
 
 }
 
 #endif