SVG Web Animations: Add SVGInterpolationType pipeline

third_party/WebKit/Source/core/animation/StringKeyframe.h

 // Copyright 2014 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 StringKeyframe_h
 #define StringKeyframe_h
 
 #include "core/animation/Keyframe.h"
 #include "core/css/StylePropertySet.h"
 
@@ skipping 58 matching lines @@
     class SVGPropertySpecificKeyframe : public Keyframe::PropertySpecificKeyframe {
     public:
         SVGPropertySpecificKeyframe(double offset, PassRefPtr<TimingFunction> easing, const String&, EffectModel::CompositeOperation);
 
         const String& value() const { return m_value; }
 
         PassOwnPtr<PropertySpecificKeyframe> cloneWithOffset(double offset) const final;
 
         const PassRefPtr<AnimatableValue> getAnimatableValue() const final { return nullptr; }
 
+        bool isNeutral() const final { return m_value.isNull(); }
         PassOwnPtr<PropertySpecificKeyframe> neutralKeyframe(double offset, PassRefPtr<TimingFunction> easing) const final;
         PassRefPtr<Interpolation> maybeCreateInterpolation(PropertyHandle, Keyframe::PropertySpecificKeyframe& end, Element*, const ComputedStyle* baseStyle) const final;
 
     private:
         SVGPropertySpecificKeyframe(double offset, PassRefPtr<TimingFunction> easing, const String&);
 
         bool isSVGPropertySpecificKeyframe() const override { return true; }
 
         String m_value;
     };
@@ skipping 17 matching lines @@
 using CSSPropertySpecificKeyframe = StringKeyframe::CSSPropertySpecificKeyframe;
 using SVGPropertySpecificKeyframe = StringKeyframe::SVGPropertySpecificKeyframe;
 
 DEFINE_TYPE_CASTS(StringKeyframe, Keyframe, value, value->isStringKeyframe(), value.isStringKeyframe());
 DEFINE_TYPE_CASTS(CSSPropertySpecificKeyframe, Keyframe::PropertySpecificKeyframe, value, value->isCSSPropertySpecificKeyframe(), value.isCSSPropertySpecificKeyframe());
 DEFINE_TYPE_CASTS(SVGPropertySpecificKeyframe, Keyframe::PropertySpecificKeyframe, value, value->isSVGPropertySpecificKeyframe(), value.isSVGPropertySpecificKeyframe());
 
 }
 
 #endif