Use Length for the stroke-dasharray property in SVGLayoutStyle

Source/core/animation/SVGStrokeDasharrayStyleInterpolation.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef SVGStrokeDasharrayStyleInterpolation_h
 #define SVGStrokeDasharrayStyleInterpolation_h
 
 #include "core/animation/StyleInterpolation.h"
 #include "core/css/CSSPrimitiveValue.h"
 
 namespace blink {
 
 class CSSValueList;
 
 class SVGStrokeDasharrayStyleInterpolation : public StyleInterpolation {
 public:
     static PassRefPtrWillBeRawPtr<SVGStrokeDasharrayStyleInterpolation> maybeCreate(const CSSValue& start, const CSSValue& end, CSSPropertyID);
 
     virtual void apply(StyleResolverState&) const override;
 
     virtual void trace(Visitor* visitor) override
     {
         StyleInterpolation::trace(visitor);
     }
 
 private:
-    SVGStrokeDasharrayStyleInterpolation(PassOwnPtrWillBeRawPtr<InterpolableValue> start, PassOwnPtrWillBeRawPtr<InterpolableValue> end, CSSPropertyID id, const Vector<CSSPrimitiveValue::UnitType>& types)
+    SVGStrokeDasharrayStyleInterpolation(PassOwnPtrWillBeRawPtr<InterpolableValue> start, PassOwnPtrWillBeRawPtr<InterpolableValue> end, CSSPropertyID id)
         : StyleInterpolation(start, end, id)
-        , m_types(types)
     { }
 
     static bool canCreateFrom(const CSSValue&);
-    static PassRefPtrWillBeRawPtr<CSSValueList> interpolableValueToStrokeDasharray(const InterpolableValue&, const Vector<CSSPrimitiveValue::UnitType>&);
-
-    Vector<CSSPrimitiveValue::UnitType> m_types;
+    static PassRefPtrWillBeRawPtr<CSSValueList> interpolableValueToStrokeDasharray(const InterpolableValue&);
 
     friend class AnimationSVGStrokeDasharrayStyleInterpolationTest;
 };
 
 }
 
 #endif // SVGStrokeDasharrayStyleInterpolation_h