Add CSSInterpolationType specific ConversionChecker

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

Index: third_party/WebKit/Source/core/animation/CSSColorInterpolationType.cpp
diff --git a/third_party/WebKit/Source/core/animation/CSSColorInterpolationType.cpp b/third_party/WebKit/Source/core/animation/CSSColorInterpolationType.cpp
index 2191225e0bcd3beab86112af08d48f1320cf0ec7..be6893553a175c7d6a774f5774f880642116fe15 100644
--- a/third_party/WebKit/Source/core/animation/CSSColorInterpolationType.cpp
+++ b/third_party/WebKit/Source/core/animation/CSSColorInterpolationType.cpp
@@ -158,7 +158,8 @@ Color CSSColorInterpolationType::ResolveInterpolableColor(
                   round(alpha));
 }
 
-class InheritedColorChecker : public InterpolationType::ConversionChecker {
+class InheritedColorChecker
+    : public CSSInterpolationType::CSSConversionChecker {
  public:
   static std::unique_ptr<InheritedColorChecker> Create(
       CSSPropertyID property,
@@ -170,10 +171,10 @@ class InheritedColorChecker : public InterpolationType::ConversionChecker {
   InheritedColorChecker(CSSPropertyID property, const OptionalStyleColor& color)
       : property_(property), color_(color) {}
 
-  bool IsValid(const InterpolationEnvironment& environment,
+  bool IsValid(const StyleResolverState& state,
                const InterpolationValue& underlying) const final {
     return color_ == ColorPropertyFunctions::GetUnvisitedColor(
-                         property_, *environment.GetState().ParentStyle());
+                         property_, *state.ParentStyle());
   }
 
   const CSSPropertyID property_;