Make EFlexWrap an enum class.

third_party/WebKit/Source/core/css/CSSPrimitiveValueMappings.h

Index: third_party/WebKit/Source/core/css/CSSPrimitiveValueMappings.h
diff --git a/third_party/WebKit/Source/core/css/CSSPrimitiveValueMappings.h b/third_party/WebKit/Source/core/css/CSSPrimitiveValueMappings.h
index c29d85aa627913af01d5c3230ab90b0316131b04..b8144cbc17515d8f97aa126979b2c483e075edf3 100644
--- a/third_party/WebKit/Source/core/css/CSSPrimitiveValueMappings.h
+++ b/third_party/WebKit/Source/core/css/CSSPrimitiveValueMappings.h
@@ -672,13 +672,13 @@ template <>
 inline CSSIdentifierValue::CSSIdentifierValue(EFlexWrap e)
     : CSSValue(kIdentifierClass) {
   switch (e) {
-    case kFlexNoWrap:
+    case EFlexWrap::kNowrap:
       value_id_ = CSSValueNowrap;
       break;
-    case kFlexWrap:
+    case EFlexWrap::kWrap:
       value_id_ = CSSValueWrap;
       break;
-    case kFlexWrapReverse:
+    case EFlexWrap::kWrapReverse:
       value_id_ = CSSValueWrapReverse;
       break;
   }
@@ -688,17 +688,17 @@ template <>
 inline EFlexWrap CSSIdentifierValue::ConvertTo() const {
   switch (value_id_) {
     case CSSValueNowrap:
-      return kFlexNoWrap;
+      return EFlexWrap::kNowrap;
     case CSSValueWrap:
-      return kFlexWrap;
+      return EFlexWrap::kWrap;
     case CSSValueWrapReverse:
-      return kFlexWrapReverse;
+      return EFlexWrap::kWrapReverse;
     default:
       break;
   }
 
   NOTREACHED();
-  return kFlexNoWrap;
+  return EFlexWrap::kNowrap;
 }
 
 template <>