Code cleanup: Remove SVGInterpolation

third_party/WebKit/Source/core/animation/NumberSVGInterpolation.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 NumberSVGInterpolation_h
-#define NumberSVGInterpolation_h
-
-#include "core/animation/SVGInterpolation.h"
-#include "core/svg/SVGNumber.h"
-#include "core/svg/SVGNumberList.h"
-
-namespace blink {
-
-enum SVGNumberNegativeValuesMode {
-    AllowNegativeNumbers,
-    ForbidNegativeNumbers
-};
-
-class NumberSVGInterpolation : public SVGInterpolation {
-public:
-    typedef SVGNumberList ListType;
-    typedef void NonInterpolableType;
-
-    static PassRefPtr<NumberSVGInterpolation> create(SVGPropertyBase* start, SVGPropertyBase* end, PassRefPtrWillBeRawPtr<SVGAnimatedPropertyBase> attribute, SVGNumberNegativeValuesMode negativeValuesMode)
-    {
-        return adoptRef(new NumberSVGInterpolation(toInterpolableValue(start), toInterpolableValue(end), attribute, negativeValuesMode));
-    }
-
-    static bool canCreateFrom(SVGPropertyBase* value)
-    {
-        return true;
-    }
-
-    PassRefPtrWillBeRawPtr<SVGPropertyBase> interpolatedValue(SVGElement&) const final
-    {
-        return fromInterpolableValue(*m_cachedValue, m_negativeValuesMode);
-    }
-
-    static PassOwnPtr<InterpolableNumber> toInterpolableValue(SVGPropertyBase* value)
-    {
-        return InterpolableNumber::create(toSVGNumber(value)->value());
-    }
-
-    static PassRefPtrWillBeRawPtr<SVGNumber> fromInterpolableValue(const InterpolableValue&, SVGNumberNegativeValuesMode = AllowNegativeNumbers);
-
-private:
-    NumberSVGInterpolation(PassOwnPtr<InterpolableValue> start, PassOwnPtr<InterpolableValue> end, PassRefPtrWillBeRawPtr<SVGAnimatedPropertyBase> attribute, SVGNumberNegativeValuesMode negativeValuesMode)
-        : SVGInterpolation(start, end, attribute)
-        , m_negativeValuesMode(negativeValuesMode)
-    {
-    }
-
-    const SVGNumberNegativeValuesMode m_negativeValuesMode;
-};
-
-}
-
-#endif // NumberSVGInterpolation_h