[svg2] Make SVGLength wrap a CSSPrimitiveValue

Source/core/svg/SVGLengthTearOff.h

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef SVGLengthTearOff_h
 #define SVGLengthTearOff_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
+#include "core/css/CSSPrimitiveValue.h"
 #include "core/svg/SVGLength.h"
 #include "core/svg/properties/SVGPropertyTearOff.h"
 
+
 namespace blink {
 
 class SVGLengthTearOff final : public SVGPropertyTearOff<SVGLength>, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
     // Forward declare these enums in the w3c naming scheme, for IDL generation
     enum {
         SVG_LENGTHTYPE_UNKNOWN = LengthTypeUnknown,
         SVG_LENGTHTYPE_NUMBER = LengthTypeNumber,
         SVG_LENGTHTYPE_PERCENTAGE = LengthTypePercentage,
@@ skipping 16 matching lines @@
     SVGLengthMode unitMode();
     float value(ExceptionState&);
     void setValue(float value, ExceptionState&);
     float valueInSpecifiedUnits();
     void setValueInSpecifiedUnits(float value, ExceptionState&);
     String valueAsString();
     void setValueAsString(const String&, ExceptionState&);
     void newValueSpecifiedUnits(unsigned short unitType, float valueInSpecifiedUnits, ExceptionState&);
     void convertToSpecifiedUnits(unsigned short unitType, ExceptionState&);
 
-    bool hasExposedLengthUnit() { return target()->unitType() <= LengthTypePC; }
+    bool hasExposedLengthUnit() { return target()->primitiveType() <= CSSPrimitiveValue::CSS_PC; }
 
 private:
     SVGLengthTearOff(PassRefPtrWillBeRawPtr<SVGLength>, SVGElement* contextElement, PropertyIsAnimValType, const QualifiedName& attributeName = QualifiedName::null());
 };
 
 } // namespace blink
 
 #endif // SVGLengthTearOff_h