Add CSSInterpolationType specific ConversionChecker

third_party/WebKit/Source/core/animation/CSSPaintInterpolationType.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/CSSPaintInterpolationType.h"
 
 #include <memory>
 #include "core/animation/CSSColorInterpolationType.h"
 #include "core/animation/PaintPropertyFunctions.h"
 #include "core/css/resolver/StyleResolverState.h"
@@ skipping 11 matching lines @@
 InterpolationValue CSSPaintInterpolationType::MaybeConvertInitial(
     const StyleResolverState&,
     ConversionCheckers& conversion_checkers) const {
   StyleColor initial_color;
   if (!PaintPropertyFunctions::GetInitialColor(CssProperty(), initial_color))
     return nullptr;
   return InterpolationValue(
       CSSColorInterpolationType::CreateInterpolableColor(initial_color));
 }
 
-class InheritedPaintChecker : public InterpolationType::ConversionChecker {
+class InheritedPaintChecker
+    : public CSSInterpolationType::CSSConversionChecker {
  public:
   static std::unique_ptr<InheritedPaintChecker> Create(
       CSSPropertyID property,
       const StyleColor& color) {
     return WTF::WrapUnique(new InheritedPaintChecker(property, color));
   }
   static std::unique_ptr<InheritedPaintChecker> Create(CSSPropertyID property) {
     return WTF::WrapUnique(new InheritedPaintChecker(property));
   }
 
  private:
   InheritedPaintChecker(CSSPropertyID property)
       : property_(property), valid_color_(false) {}
   InheritedPaintChecker(CSSPropertyID property, const StyleColor& color)
       : property_(property), valid_color_(true), color_(color) {}
 
-  bool IsValid(const InterpolationEnvironment& environment,
+  bool IsValid(const StyleResolverState& state,
                const InterpolationValue& underlying) const final {
     StyleColor parent_color;
-    if (!PaintPropertyFunctions::GetColor(
-            property_, *environment.GetState().ParentStyle(), parent_color))
+    if (!PaintPropertyFunctions::GetColor(property_, *state.ParentStyle(),
+                                          parent_color))
       return !valid_color_;
     return valid_color_ && parent_color == color_;
   }
 
   const CSSPropertyID property_;
   const bool valid_color_;
   const StyleColor color_;
 };
 
 InterpolationValue CSSPaintInterpolationType::MaybeConvertInherit(
@@ skipping 40 matching lines @@
     const InterpolableValue& interpolable_color,
     const NonInterpolableValue*,
     StyleResolverState& state) const {
   PaintPropertyFunctions::SetColor(
       CssProperty(), *state.Style(),
       CSSColorInterpolationType::ResolveInterpolableColor(interpolable_color,
                                                           state));
 }
 
 }  // namespace blink