Reduce forward declarations in core/rendering

Source/core/rendering/style/StyleRareNonInheritedData.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * 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
@@ skipping 38 matching lines @@
 class LengthSize;
 class ShadowList;
 class StyleDeprecatedFlexibleBoxData;
 class StyleFilterData;
 class StyleFlexibleBoxData;
 class StyleGridData;
 class StyleGridItemData;
 class StyleMarqueeData;
 class StyleMultiColData;
 class StyleReflection;
-class StyleResolver;
 class StyleTransformData;
 class StyleWillChangeData;
 
 // Page size type.
 // StyleRareNonInheritedData::m_pageSize is meaningful only when
 // StyleRareNonInheritedData::m_pageSizeType is PAGE_SIZE_RESOLVED.
 enum PageSizeType {
     PAGE_SIZE_AUTO, // size: auto
     PAGE_SIZE_AUTO_LANDSCAPE, // size: landscape
     PAGE_SIZE_AUTO_PORTRAIT, // size: portrait
@@ skipping 135 matching lines @@
     unsigned m_requiresAcceleratedCompositingForExternalReasons: 1;
 
 private:
     StyleRareNonInheritedData();
     StyleRareNonInheritedData(const StyleRareNonInheritedData&);
 };
 
 } // namespace WebCore
 
 #endif // StyleRareNonInheritedData_h