Web Animations: Remove CSS dependence from InterpolationType

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

 // 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.
 
 #include "config.h"
 #include "core/animation/StringKeyframe.h"
 
 #include "core/animation/AngleSVGInterpolation.h"
 #include "core/animation/CSSValueInterpolationType.h"
 #include "core/animation/ColorInterpolationType.h"
@@ skipping 264 matching lines @@
     populateAnimatableValue(property, *element, baseStyle, false);
     end.populateAnimatableValue(property, *element, baseStyle, false);
     return LegacyStyleInterpolation::create(getAnimatableValue(), end.getAnimatableValue(), property);
 }
 
 PassRefPtr<Interpolation> StringKeyframe::CSSPropertySpecificKeyframe::maybeCreateInterpolation(PropertyHandle propertyHandle, Keyframe::PropertySpecificKeyframe& end, Element* element, const ComputedStyle* baseStyle) const
 {
     CSSPropertyID property = propertyHandle.cssProperty();
     const Vector<const InterpolationType*>* applicableTypes = applicableTypesForProperty(property);
     if (applicableTypes)
-        return InvalidatableStyleInterpolation::create(*applicableTypes, *this, toCSSPropertySpecificKeyframe(end));
+        return InvalidatableStyleInterpolation::create(*applicableTypes, *this, end);
 
     // TODO(alancutter): Remove the remainder of this function.
 
     // FIXME: Refactor this into a generic piece that lives in InterpolationEffect, and a template parameter specific converter.
     CSSValue* fromCSSValue = m_value.get();
     CSSValue* toCSSValue = toCSSPropertySpecificKeyframe(end).value();
     InterpolationRange range = RangeAll;
 
     // FIXME: Remove this flag once we can rely on legacy's behaviour being correct.
     bool forceDefaultInterpolation = false;
@@ skipping 238 matching lines @@
     RefPtrWillBeRawPtr<SVGPropertyBase> fromValue = attribute->currentValueBase()->cloneForAnimation(m_value);
     RefPtrWillBeRawPtr<SVGPropertyBase> toValue = attribute->currentValueBase()->cloneForAnimation(toSVGPropertySpecificKeyframe(end).value());
 
     if (!fromValue || !toValue)
         return nullptr;
 
     return createSVGInterpolation(fromValue.get(), toValue.get(), attribute.get());
 }
 
 } // namespace blink