Web Animations: Migrate SVG integer interpolation to interpolation types

third_party/WebKit/Source/core/animation/IntegerSVGInterpolation.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 IntegerSVGInterpolation_h
-#define IntegerSVGInterpolation_h
-
-#include "core/animation/SVGInterpolation.h"
-#include "core/svg/SVGInteger.h"
-
-namespace blink {
-
-class IntegerSVGInterpolation : public SVGInterpolation {
-public:
-    static PassRefPtr<IntegerSVGInterpolation> create(SVGPropertyBase* start, SVGPropertyBase* end, PassRefPtrWillBeRawPtr<SVGAnimatedPropertyBase> attribute)
-    {
-        return adoptRef(new IntegerSVGInterpolation(toInterpolableValue(start), toInterpolableValue(end), attribute));
-    }
-
-    PassRefPtrWillBeRawPtr<SVGPropertyBase> interpolatedValue(SVGElement&) const final
-    {
-        return fromInterpolableValue(*m_cachedValue);
-    }
-
-private:
-    IntegerSVGInterpolation(PassOwnPtr<InterpolableValue> start, PassOwnPtr<InterpolableValue> end, PassRefPtrWillBeRawPtr<SVGAnimatedPropertyBase> attribute)
-        : SVGInterpolation(start, end, attribute)
-    {
-    }
-
-    static PassOwnPtr<InterpolableValue> toInterpolableValue(SVGPropertyBase* value)
-    {
-        return InterpolableNumber::create(toSVGInteger(value)->value());
-    }
-
-    static PassRefPtrWillBeRawPtr<SVGInteger> fromInterpolableValue(const InterpolableValue& value)
-    {
-        return SVGInteger::create(clampTo<int>(roundf(toInterpolableNumber(value).value())));
-    }
-};
-
-}
-
-#endif // IntegerSVGInterpolation_h