Make EFlexWrap 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 654 matching lines @@
   }
 
   NOTREACHED();
   return EFlexDirection::kRow;
 }
 
 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;
   }
 }
 
 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 <>
 inline CSSIdentifierValue::CSSIdentifierValue(EFloat e)
     : CSSValue(kIdentifierClass) {
   switch (e) {
     case EFloat::kNone:
       value_id_ = CSSValueNone;
       break;
     case EFloat::kLeft:
@@ skipping 1731 matching lines @@
     default:
       break;
   }
   NOTREACHED();
   return kContainsNone;
 }
 
 }  // namespace blink
 
 #endif