Make TextEmphasisFill an enum class.

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

 /*
  * Copyright (C) 2007 Alexey Proskuryakov <ap@nypop.com>.
  * Copyright (C) 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2009 Jeff Schiller <codedread@gmail.com>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ skipping 1646 matching lines @@
   }
 
   NOTREACHED();
   return kTextOverflowClip;
 }
 
 template <>
 inline CSSIdentifierValue::CSSIdentifierValue(TextEmphasisFill fill)
     : CSSValue(kIdentifierClass) {
   switch (fill) {
-    case kTextEmphasisFillFilled:
+    case TextEmphasisFill::kFilled:
       value_id_ = CSSValueFilled;
       break;
-    case kTextEmphasisFillOpen:
+    case TextEmphasisFill::kOpen:
       value_id_ = CSSValueOpen;
       break;
   }
 }
 
 template <>
 inline TextEmphasisFill CSSIdentifierValue::ConvertTo() const {
   switch (value_id_) {
     case CSSValueFilled:
-      return kTextEmphasisFillFilled;
+      return TextEmphasisFill::kFilled;
     case CSSValueOpen:
-      return kTextEmphasisFillOpen;
+      return TextEmphasisFill::kOpen;
     default:
       break;
   }
 
   NOTREACHED();
-  return kTextEmphasisFillFilled;
+  return TextEmphasisFill::kFilled;
 }
 
 template <>
 inline CSSIdentifierValue::CSSIdentifierValue(TextEmphasisMark mark)
     : CSSValue(kIdentifierClass) {
   switch (mark) {
     case kTextEmphasisMarkDot:
       value_id_ = CSSValueDot;
       break;
     case kTextEmphasisMarkCircle:
@@ skipping 1621 matching lines @@
     default:
       break;
   }
   NOTREACHED();
   return kContainsNone;
 }
 
 }  // namespace blink
 
 #endif