Make StyleResolverState argument a pointer in maybeConvertValue()

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

Index: third_party/WebKit/Source/core/animation/CSSTransformInterpolationType.cpp
diff --git a/third_party/WebKit/Source/core/animation/CSSTransformInterpolationType.cpp b/third_party/WebKit/Source/core/animation/CSSTransformInterpolationType.cpp
index 8e7fc5d24d75e5060c3dbdd4bc7ca372d63c8f4f..1a274d39567c4a9e8bef41c877ce759506617395 100644
--- a/third_party/WebKit/Source/core/animation/CSSTransformInterpolationType.cpp
+++ b/third_party/WebKit/Source/core/animation/CSSTransformInterpolationType.cpp
@@ -175,8 +175,9 @@ InterpolationValue CSSTransformInterpolationType::maybeConvertInherit(
 
 InterpolationValue CSSTransformInterpolationType::maybeConvertValue(
     const CSSValue& value,
-    const StyleResolverState& state,
+    const StyleResolverState* state,
     ConversionCheckers& conversionCheckers) const {
+  DCHECK(state);
   if (value.isValueList()) {
     CSSLengthArray lengthArray;
     for (const CSSValue* item : toCSSValueList(value)) {
@@ -195,14 +196,15 @@ InterpolationValue CSSTransformInterpolationType::maybeConvertValue(
       }
     }
     std::unique_ptr<InterpolationType::ConversionChecker> lengthUnitsChecker =
-        LengthUnitsChecker::maybeCreate(std::move(lengthArray), state);
+        LengthUnitsChecker::maybeCreate(std::move(lengthArray), *state);
 
     if (lengthUnitsChecker)
       conversionCheckers.push_back(std::move(lengthUnitsChecker));
   }
 
+  DCHECK(state);
   TransformOperations transform = TransformBuilder::createTransformOperations(
-      value, state.cssToLengthConversionData());
+      value, state->cssToLengthConversionData());
   return convertTransform(std::move(transform));
 }