Changed TextDirection to an enum class and renamed its members

third_party/WebKit/Source/core/layout/TextRunConstructor.cpp

 /*
  * Copyright (C) 2013 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 111 matching lines @@
   return constructTextRunInternal(font, string.characters16(), length, style,
                                   direction, flags);
 }
 
 TextRun constructTextRun(const Font& font,
                          const String& string,
                          const ComputedStyle& style,
                          TextRunFlags flags) {
   return constructTextRun(font, string, style,
                           string.isEmpty() || string.is8Bit()
-                              ? LTR
+                              ? TextDirection::Ltr
                               : determineDirectionality(string),
                           flags);
 }
 
 TextRun constructTextRun(const Font& font,
                          const LineLayoutText text,
                          unsigned offset,
                          unsigned length,
                          const ComputedStyle& style) {
   ASSERT(offset + length <= text.textLength());
-  if (text.hasEmptyText())
+  if (text.hasEmptyText()) {
     return constructTextRunInternal(font, static_cast<const LChar*>(nullptr), 0,
-                                    style, LTR);
-  if (text.is8Bit())
+                                    style, TextDirection::Ltr);
+  }
+  if (text.is8Bit()) {
     return constructTextRunInternal(font, text.characters8() + offset, length,
-                                    style, LTR);
+                                    style, TextDirection::Ltr);
+  }
 
   TextRun run = constructTextRunInternal(font, text.characters16() + offset,
-                                         length, style, LTR);
+                                         length, style, TextDirection::Ltr);
   run.setDirection(directionForRun(run));
   return run;
 }
 
 }  // namespace blink