Add CSSInterpolationType specific ConversionChecker

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

 // Copyright 2016 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/CSSRotateInterpolationType.h"
 
 #include <memory>
 #include "core/css/resolver/StyleBuilderConverter.h"
 #include "platform/transforms/RotateTransformOperation.h"
 #include "platform/transforms/Rotation.h"
@@ skipping 132 matching lines @@
     return OptionalRotation();
   return OptionalRotation(
       Rotation(style.Rotate()->Axis(), style.Rotate()->Angle()));
 }
 
 InterpolationValue ConvertRotation(const OptionalRotation& rotation) {
   return InterpolationValue(InterpolableNumber::Create(0),
                             CSSRotateNonInterpolableValue::Create(rotation));
 }
 
-class InheritedRotationChecker : public InterpolationType::ConversionChecker {
+class InheritedRotationChecker
+    : public CSSInterpolationType::CSSConversionChecker {
  public:
   static std::unique_ptr<InheritedRotationChecker> Create(
       const OptionalRotation& inherited_rotation) {
     return WTF::WrapUnique(new InheritedRotationChecker(inherited_rotation));
   }
 
-  bool IsValid(const InterpolationEnvironment& environment,
+  bool IsValid(const StyleResolverState& state,
                const InterpolationValue& underlying) const final {
-    OptionalRotation inherited_rotation =
-        GetRotation(*environment.GetState().ParentStyle());
+    OptionalRotation inherited_rotation = GetRotation(*state.ParentStyle());
     if (inherited_rotation_.IsNone() || inherited_rotation.IsNone())
       return inherited_rotation.IsNone() == inherited_rotation.IsNone();
     return inherited_rotation_.GetRotation().axis ==
                inherited_rotation.GetRotation().axis &&
            inherited_rotation_.GetRotation().angle ==
                inherited_rotation.GetRotation().angle;
   }
 
  private:
   InheritedRotationChecker(const OptionalRotation& inherited_rotation)
@@ skipping 85 matching lines @@
   OptionalRotation rotation = non_interpolable_value.SlerpedRotation(progress);
   if (rotation.IsNone()) {
     state.Style()->SetRotate(nullptr);
     return;
   }
   state.Style()->SetRotate(RotateTransformOperation::Create(
       rotation.GetRotation(), TransformOperation::kRotate3D));
 }
 
 }  // namespace blink