Add CSSInterpolationType specific ConversionChecker

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

 // 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.
 
 #include "core/animation/CSSNumberInterpolationType.h"
 
 #include <memory>
 #include "core/animation/NumberPropertyFunctions.h"
 #include "core/css/resolver/StyleBuilder.h"
 #include "core/css/resolver/StyleResolverState.h"
 #include "platform/wtf/PtrUtil.h"
 
 namespace blink {
 
-class InheritedNumberChecker : public InterpolationType::ConversionChecker {
+class InheritedNumberChecker
+    : public CSSInterpolationType::CSSConversionChecker {
  public:
   static std::unique_ptr<InheritedNumberChecker> Create(CSSPropertyID property,
                                                         double number) {
     return WTF::WrapUnique(new InheritedNumberChecker(property, number));
   }
 
  private:
   InheritedNumberChecker(CSSPropertyID property, double number)
       : property_(property), number_(number) {}
 
-  bool IsValid(const InterpolationEnvironment& environment,
+  bool IsValid(const StyleResolverState& state,
                const InterpolationValue& underlying) const final {
     double parent_number;
-    if (!NumberPropertyFunctions::GetNumber(
-            property_, *environment.GetState().ParentStyle(), parent_number))
+    if (!NumberPropertyFunctions::GetNumber(property_, *state.ParentStyle(),
+                                            parent_number))
       return false;
     return parent_number == number_;
   }
 
   const CSSPropertyID property_;
   const double number_;
 };
 
 const CSSValue* CSSNumberInterpolationType::CreateCSSValue(
     const InterpolableValue& value,
@@ skipping 64 matching lines @@
       CssProperty(), ToInterpolableNumber(interpolable_value).Value());
   if (!NumberPropertyFunctions::SetNumber(CssProperty(), *state.Style(),
                                           clamped_number))
     StyleBuilder::ApplyProperty(
         CssProperty(), state,
         *CSSPrimitiveValue::Create(clamped_number,
                                    CSSPrimitiveValue::UnitType::kNumber));
 }
 
 }  // namespace blink