Use Length for the stroke-width property in SVGLayoutStyle

Source/core/layout/svg/SVGLayoutTreeAsText.cpp

 /*
  * Copyright (C) 2004, 2005, 2007, 2009 Apple Inc. All rights reserved.
  *           (C) 2005 Rob Buis <buis@kde.org>
  *           (C) 2006 Alexander Kellett <lypanov@kde.org>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
@@ skipping 271 matching lines @@
         ASSERT(shape.element());
 
         SVGPaintDescription strokePaintDescription = LayoutSVGResourcePaintServer::requestPaintDescription(shape, shape.styleRef(), ApplyToStrokeMode);
         if (strokePaintDescription.isValid) {
             TextStreamSeparator s(" ");
             ts << " [stroke={" << s;
             writeSVGPaintingResource(ts, strokePaintDescription);
 
             SVGLengthContext lengthContext(shape.element());
             double dashOffset = lengthContext.valueForLength(svgStyle.strokeDashOffset(), style);
-            double strokeWidth = svgStyle.strokeWidth()->value(lengthContext);
+            double strokeWidth = lengthContext.valueForLength(svgStyle.strokeWidth());
             DashArray dashArray = SVGLayoutSupport::resolveSVGDashArray(*svgStyle.strokeDashArray(), style, lengthContext);
 
             writeIfNotDefault(ts, "opacity", svgStyle.strokeOpacity(), 1.0f);
             writeIfNotDefault(ts, "stroke width", strokeWidth, 1.0);
             writeIfNotDefault(ts, "miter limit", svgStyle.strokeMiterLimit(), 4.0f);
             writeIfNotDefault(ts, "line cap", svgStyle.capStyle(), ButtCap);
             writeIfNotDefault(ts, "line join", svgStyle.joinStyle(), MiterJoin);
             writeIfNotDefault(ts, "dash offset", dashOffset, 0.0);
             if (!dashArray.isEmpty())
                 writeNameValuePair(ts, "dash array", dashArray);
@@ skipping 366 matching lines @@
             ts << " ";
             writeNameAndQuotedValue(ts, "filter", svgStyle.filterResource());
             ts << " ";
             writeStandardPrefix(ts, *filter, 0);
             ts << " " << filter->resourceBoundingBox(&renderer) << "\n";
         }
     }
 }
 
 } // namespace blink