Changed TextDirection to an enum class and renamed its members

third_party/WebKit/Source/platform/text/TextDirection.h

 /*
  * Copyright (C) 2003, 2006 Apple Computer, Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 10 matching lines @@
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef TextDirection_h
 #define TextDirection_h
 
 namespace blink {
 
-enum TextDirection { RTL, LTR };
+enum class TextDirection : unsigned { Rtl, Ltr };
 
 inline bool isLeftToRightDirection(TextDirection direction) {
-  return direction == LTR;
+  return direction == TextDirection::Ltr;
 }
 }
 
 #endif