Use Length for the stroke-width property in SVGLayoutStyle

Source/core/layout/svg/SVGTextLayoutEngineBaseline.cpp

 /*
  * Copyright (C) Research In Motion Limited 2010. 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 #include "core/layout/svg/SVGTextLayoutEngineBaseline.h"
 
 #include "core/layout/LayoutObject.h"
 #include "core/layout/style/SVGLayoutStyle.h"
 #include "core/layout/svg/SVGTextMetrics.h"
+#include "core/svg/SVGLengthContext.h"
 #include "platform/fonts/Font.h"
 #include "platform/text/UnicodeRange.h"
 
 namespace blink {
 
 SVGTextLayoutEngineBaseline::SVGTextLayoutEngineBaseline(const Font& font)
     : m_font(font)
 {
 }
 
@@ skipping 178 matching lines @@
     }
 
     // Horizontal advance calculation.
     if (angle && !orientationIsMultiplyOf180Degrees)
         return metrics.height();
 
     return metrics.width();
 }
 
 }