[svg2] Make SVGLength wrap a CSSPrimitiveValue

Source/core/svg/SVGTextContentElement.cpp

Index: Source/core/svg/SVGTextContentElement.cpp
diff --git a/Source/core/svg/SVGTextContentElement.cpp b/Source/core/svg/SVGTextContentElement.cpp
index f367ffd64630f223412b43f9a3341fdb27e20da3..61d2aa3583e4bafeb1a574053fb6063a7892055e 100644
--- a/Source/core/svg/SVGTextContentElement.cpp
+++ b/Source/core/svg/SVGTextContentElement.cpp
@@ -59,7 +59,7 @@ public:
     {
         SVGTextContentElement* textContentElement = toSVGTextContentElement(contextElement());
         if (!textContentElement->textLengthIsSpecifiedByUser())
-            baseValue()->newValueSpecifiedUnits(LengthTypeNumber, textContentElement->getComputedTextLength());
+            baseValue()->newValueSpecifiedUnits(CSSPrimitiveValue::CSS_NUMBER, textContentElement->getComputedTextLength());
 
         return SVGAnimatedLength::baseVal();
     }