Implement left property animation on InvalidatableStyleInterpolation

Source/core/animation/CSSValueInterpolationType.h

Index: Source/core/animation/CSSValueInterpolationType.h
diff --git a/Source/core/animation/CSSValueInterpolationType.h b/Source/core/animation/CSSValueInterpolationType.h
index 568fee7e7a991f7004e7cf2843dbb97e988f5d80..20de9bfb6b9dc47d531a05c4298d6d87c99a509c 100644
--- a/Source/core/animation/CSSValueInterpolationType.h
+++ b/Source/core/animation/CSSValueInterpolationType.h
@@ -17,7 +17,18 @@ public:
         : InterpolationType(property)
     { }
 
+    PassOwnPtrWillBeRawPtr<PairwisePrimitiveInterpolation> maybeConvertPairwise(const CSSPropertySpecificKeyframe& startKeyframe, const CSSPropertySpecificKeyframe& endKeyframe, const StyleResolverState* state, ConversionCheckers&) const final
+    {
+        return nullptr;
+    }
+
     PassOwnPtrWillBeRawPtr<InterpolationValue> maybeConvertSingle(const CSSPropertySpecificKeyframe&, const StyleResolverState*, ConversionCheckers&) const final;
+
+    PassOwnPtrWillBeRawPtr<InterpolationValue> maybeConvertUnderlyingValue(const StyleResolverState&) const final
+    {
+        return nullptr;
+    }
+
     void apply(const InterpolableValue&, const NonInterpolableValue*, StyleResolverState&) const final;
 };