Revert of Catch up the spec update in CSS Rhythmic Sizing

third_party/WebKit/Source/core/style/StyleRareInheritedData.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 202 matching lines @@
   unsigned m_rubyPosition : 1;           // RubyPosition
 
   // Though will-change is not itself an inherited property, the intent
   // expressed by 'will-change: contents' includes descendants.
   unsigned m_subtreeWillChangeContents : 1;
 
   unsigned m_selfOrAncestorHasDirAutoAttribute : 1;
 
   unsigned m_respectImageOrientation : 1;
 
+  unsigned m_snapHeightPosition : 7;
+
   AtomicString hyphenationString;
   short hyphenationLimitBefore;
   short hyphenationLimitAfter;
   short hyphenationLimitLines;
 
-  uint8_t m_lineHeightStep;
+  uint8_t m_snapHeightUnit;
 
   AtomicString textEmphasisCustomMark;
   RefPtr<QuotesData> quotes;
 
   Color tapHighlightColor;
 
   RefPtr<AppliedTextDecorationList> appliedTextDecorations;
   TabSize m_tabSize;
 
   RefPtr<StyleInheritedVariables> variables;
   TextSizeAdjust m_textSizeAdjust;
 
  private:
   StyleRareInheritedData();
   StyleRareInheritedData(const StyleRareInheritedData&);
 };
 
 }  // namespace blink
 
 #endif  // StyleRareInheritedData_h