[SVG] SVGAnimatedString{,List} migration to new SVG property impl.

Source/core/svg/SVGFEDisplacementMapElement.h

 /*
  * Copyright (C) 2006 Oliver Hunt <oliver@nerget.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 53 matching lines @@
     }
 };
 
 class SVGFEDisplacementMapElement FINAL : public SVGFilterPrimitiveStandardAttributes {
 public:
     static PassRefPtr<SVGFEDisplacementMapElement> create(Document&);
 
     static ChannelSelectorType stringToChannel(const String&);
 
     SVGAnimatedNumber* scale() { return m_scale.get(); }
+    SVGAnimatedString* in1() { return m_in1.get(); }
+    SVGAnimatedString* in2() { return m_in2.get(); }
 
 private:
     SVGFEDisplacementMapElement(Document&);
 
     bool isSupportedAttribute(const QualifiedName&);
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
     virtual bool setFilterEffectAttribute(FilterEffect*, const QualifiedName& attrName) OVERRIDE;
     virtual void svgAttributeChanged(const QualifiedName&) OVERRIDE;
     virtual PassRefPtr<FilterEffect> build(SVGFilterBuilder*, Filter*) OVERRIDE;
 
     RefPtr<SVGAnimatedNumber> m_scale;
+    RefPtr<SVGAnimatedString> m_in1;
+    RefPtr<SVGAnimatedString> m_in2;
     BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGFEDisplacementMapElement)
-        DECLARE_ANIMATED_STRING(In1, in1)
-        DECLARE_ANIMATED_STRING(In2, in2)
         DECLARE_ANIMATED_ENUMERATION(XChannelSelector, xChannelSelector, ChannelSelectorType)
         DECLARE_ANIMATED_ENUMERATION(YChannelSelector, yChannelSelector, ChannelSelectorType)
     END_DECLARE_ANIMATED_PROPERTIES
 };
 
 } // namespace WebCore
 
 #endif // SVGFEDisplacementMapElement_h