Rename maybeConvertUnderlyingValue() in CSSInterpolationType subclasses

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

Index: third_party/WebKit/Source/core/animation/CSSPaintInterpolationType.cpp
diff --git a/third_party/WebKit/Source/core/animation/CSSPaintInterpolationType.cpp b/third_party/WebKit/Source/core/animation/CSSPaintInterpolationType.cpp
index cfd130805030cd33b1b9eb7ad7f6fdfb5fb743f4..8e7dee4cb5e68c854c28ea0798895bc6bf0a8947 100644
--- a/third_party/WebKit/Source/core/animation/CSSPaintInterpolationType.cpp
+++ b/third_party/WebKit/Source/core/animation/CSSPaintInterpolationType.cpp
@@ -88,13 +88,14 @@ InterpolationValue CSSPaintInterpolationType::maybeConvertValue(
   return InterpolationValue(std::move(interpolableColor));
 }
 
-InterpolationValue CSSPaintInterpolationType::maybeConvertUnderlyingValue(
-    const InterpolationEnvironment& environment) const {
+InterpolationValue
+CSSPaintInterpolationType::maybeConvertStandardPropertyUnderlyingValue(
+    const StyleResolverState& state) const {
   // TODO(alancutter): Support capturing and animating with the visited paint
   // color.
   StyleColor underlyingColor;
-  if (!PaintPropertyFunctions::getColor(
-          cssProperty(), *environment.state().style(), underlyingColor))
+  if (!PaintPropertyFunctions::getColor(cssProperty(), *state.style(),
+                                        underlyingColor))
     return nullptr;
   return InterpolationValue(
       CSSColorInterpolationType::createInterpolableColor(underlyingColor));