Make TextEmphasisFill an enum class.

third_party/WebKit/Source/core/css/resolver/StyleBuilderCustom.cpp

Index: third_party/WebKit/Source/core/css/resolver/StyleBuilderCustom.cpp
diff --git a/third_party/WebKit/Source/core/css/resolver/StyleBuilderCustom.cpp b/third_party/WebKit/Source/core/css/resolver/StyleBuilderCustom.cpp
index 54bcb994514113982ccaa633bf4890a301df9d28..aa6114b331c76267666cc0f0edfd0014dfc81c17 100644
--- a/third_party/WebKit/Source/core/css/resolver/StyleBuilderCustom.cpp
+++ b/third_party/WebKit/Source/core/css/resolver/StyleBuilderCustom.cpp
@@ -612,7 +612,7 @@ void StyleBuilderFunctions::applyValueCSSPropertyWebkitTextEmphasisStyle(
   }
 
   if (value.IsStringValue()) {
-    state.Style()->SetTextEmphasisFill(kTextEmphasisFillFilled);
+    state.Style()->SetTextEmphasisFill(TextEmphasisFill::kFilled);
     state.Style()->SetTextEmphasisMark(kTextEmphasisMarkCustom);
     state.Style()->SetTextEmphasisCustomMark(
         AtomicString(ToCSSStringValue(value).Value()));
@@ -629,7 +629,7 @@ void StyleBuilderFunctions::applyValueCSSPropertyWebkitTextEmphasisStyle(
         identifier_value.ConvertTo<TextEmphasisFill>());
     state.Style()->SetTextEmphasisMark(kTextEmphasisMarkAuto);
   } else {
-    state.Style()->SetTextEmphasisFill(kTextEmphasisFillFilled);
+    state.Style()->SetTextEmphasisFill(TextEmphasisFill::kFilled);
     state.Style()->SetTextEmphasisMark(
         identifier_value.ConvertTo<TextEmphasisMark>());
   }