Remove all writing mode function arguments and remove writing mode from RenderStyle.

sky/engine/core/rendering/style/RenderStyle.cpp

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Adobe Systems Incorporated. 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 396 matching lines @@
         if (inherited->line_height != other.inherited->line_height
             || inherited->font != other.inherited->font
             || inherited->horizontal_border_spacing != other.inherited->horizontal_border_spacing
             || inherited->vertical_border_spacing != other.inherited->vertical_border_spacing)
             return true;
     }
 
     if (inherited_flags.m_rtlOrdering != other.inherited_flags.m_rtlOrdering
         || inherited_flags._text_align != other.inherited_flags._text_align
         || inherited_flags._direction != other.inherited_flags._direction
-        || inherited_flags._white_space != other.inherited_flags._white_space
-        || inherited_flags.m_writingMode != other.inherited_flags.m_writingMode)
+        || inherited_flags._white_space != other.inherited_flags._white_space)
         return true;
 
     if (noninherited_flags.overflowX != other.noninherited_flags.overflowX
         || noninherited_flags.overflowY != other.noninherited_flags.overflowY
         || noninherited_flags.clear != other.noninherited_flags.clear
         || noninherited_flags.unicodeBidi != other.noninherited_flags.unicodeBidi
         || noninherited_flags.position != other.noninherited_flags.position
         || noninherited_flags.floating != other.noninherited_flags.floating
         || noninherited_flags.originalDisplay != other.noninherited_flags.originalDisplay)
         return true;
@@ skipping 988 matching lines @@
     // right
     radiiSum = radii.topRight().height() + radii.bottomRight().height();
     if (radiiSum > rect.height())
         factor = std::min(rect.height() / radiiSum, factor);
 
     ASSERT(factor <= 1);
     return factor;
 }
 
 } // namespace blink