Use Length for the stroke-dasharray property in SVGLayoutStyle

Source/core/layout/style/SVGLayoutStyle.cpp

 /*
     Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
                   2004, 2005, 2010 Rob Buis <buis@kde.org>
     Copyright (C) Research In Motion Limited 2010. All rights reserved.
 
     Based on khtml code by:
     Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
     Copyright (C) 1999-2003 Lars Knoll (knoll@kde.org)
     Copyright (C) 2002-2003 Dirk Mueller (mueller@kde.org)
     Copyright (C) 2002 Apple Computer, Inc.
@@ skipping 102 matching lines @@
 
 void SVGLayoutStyle::copyNonInheritedFromCached(const SVGLayoutStyle* other)
 {
     svg_noninherited_flags = other->svg_noninherited_flags;
     stops = other->stops;
     misc = other->misc;
     layout = other->layout;
     resources = other->resources;
 }
 
+PassRefPtr<SVGDashArray> SVGLayoutStyle::initialStrokeDashArray()
+{
+    DEFINE_STATIC_REF(SVGDashArray, initialDashArray, SVGDashArray::create());
+    return initialDashArray;
+}
+
 StyleDifference SVGLayoutStyle::diff(const SVGLayoutStyle* other) const
 {
     StyleDifference styleDifference;
 
     if (diffNeedsLayoutAndPaintInvalidation(other)) {
         styleDifference.setNeedsFullLayout();
         styleDifference.setNeedsPaintInvalidationObject();
     } else if (diffNeedsPaintInvalidation(other)) {
         styleDifference.setNeedsPaintInvalidationObject();
     }
@@ skipping 107 matching lines @@
 }
 
 EPaintOrderType SVGLayoutStyle::paintOrderType(unsigned index) const
 {
     ASSERT(index < ((1 << kPaintOrderBitwidth)-1));
     unsigned pt = (paintOrder() >> (kPaintOrderBitwidth*index)) & ((1u << kPaintOrderBitwidth) - 1);
     return (EPaintOrderType)pt;
 }
 
 }