Use Length for the stroke-width property in SVGLayoutStyle

Source/core/css/resolver/StyleBuilderConverter.h

Index: Source/core/css/resolver/StyleBuilderConverter.h
diff --git a/Source/core/css/resolver/StyleBuilderConverter.h b/Source/core/css/resolver/StyleBuilderConverter.h
index 19762667a7f50a214fd9ef4ec1edd65ad16923c2..ca10e721aade7217b4167057985731f629c73981 100644
--- a/Source/core/css/resolver/StyleBuilderConverter.h
+++ b/Source/core/css/resolver/StyleBuilderConverter.h
@@ -35,7 +35,6 @@
 #include "core/layout/style/ShadowList.h"
 #include "core/layout/style/StyleReflection.h"
 #include "core/layout/style/TransformOrigin.h"
-#include "core/svg/SVGLength.h"
 #include "platform/LengthSize.h"
 #include "platform/fonts/FontDescription.h"
 #include "platform/text/TabSize.h"
@@ -64,6 +63,7 @@ public:
     static GridTrackSize convertGridTrackSize(StyleResolverState&, CSSValue*);
     template <typename T> static T convertLineWidth(StyleResolverState&, CSSValue*);
     static Length convertLength(const StyleResolverState&, CSSValue*);
+    static UnzoomedLength convertUnzoomedLength(const StyleResolverState&, CSSValue*);
     static Length convertLengthOrAuto(const StyleResolverState&, CSSValue*);
     static Length convertLengthSizing(StyleResolverState&, CSSValue*);
     static Length convertLengthMaxSizing(StyleResolverState&, CSSValue*);
@@ -85,7 +85,6 @@ public:
     static PassRefPtr<SVGDashArray> convertStrokeDasharray(StyleResolverState&, CSSValue*);
     static StyleColor convertStyleColor(StyleResolverState&, CSSValue*, bool forVisitedLink = false);
     static Color convertSVGColor(StyleResolverState&, CSSValue*);
-    static PassRefPtrWillBeRawPtr<SVGLength> convertSVGLength(StyleResolverState&, CSSValue*);
     static float convertTextStrokeWidth(StyleResolverState&, CSSValue*);
     static TransformOrigin convertTransformOrigin(StyleResolverState&, CSSValue*);