Changed TextDirection to an enum class and renamed its members

third_party/WebKit/Source/core/layout/LayoutThemeMac.mm

 /*
  * Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Google, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 467 matching lines @@
       return true;
     if (!fontSizeMatchesToControlSize(style))
       return true;
     if (style.getFontDescription().family().family() !=
         FontFamilyNames::system_ui)
       return true;
     if (!style.height().isIntrinsicOrAuto())
       return true;
     // NSPopUpButtonCell on macOS 10.9 doesn't support
     // NSUserInterfaceLayoutDirectionRightToLeft.
-    if (IsOS10_9() && style.direction() == RTL)
+    if (IsOS10_9() && style.direction() == TextDirection::Rtl)
       return true;
   }
   // Some other cells don't work well when scaled.
   if (style.effectiveZoom() != 1) {
     switch (style.appearance()) {
       case ButtonPart:
       case PushButtonPart:
       case SearchFieldPart:
       case SquareButtonPart:
         return true;
@@ skipping 314 matching lines @@
   setControlSize(popupButton, popupButtonSizes(), rect.size(),
                  object.styleRef().effectiveZoom());
 
   // Update the various states we respond to.
   updateActiveState(popupButton, object);
   updateCheckedState(popupButton, object);
   updateEnabledState(popupButton, object);
   updatePressedState(popupButton, object);
 
   popupButton.userInterfaceLayoutDirection =
-      object.styleRef().direction() == LTR
+      object.styleRef().direction() == TextDirection::Ltr
           ? NSUserInterfaceLayoutDirectionLeftToRight
           : NSUserInterfaceLayoutDirectionRightToLeft;
 }
 
 const IntSize* LayoutThemeMac::menuListSizes() const {
   static const IntSize sizes[3] = {IntSize(9, 0), IntSize(5, 0), IntSize(0, 0)};
   return sizes;
 }
 
 int LayoutThemeMac::minimumMenuListSize(const ComputedStyle& style) const {
@@ skipping 269 matching lines @@
 }
 
 bool LayoutThemeMac::shouldUseFallbackTheme(const ComputedStyle& style) const {
   ControlPart part = style.appearance();
   if (part == CheckboxPart || part == RadioPart)
     return style.effectiveZoom() != 1;
   return false;
 }
 
 }  // namespace blink