Make EFlexDirection an enum class.

third_party/WebKit/Source/core/style/ComputedStyle.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 722 matching lines @@
   static Length InitialFlexBasis() { return Length(kAuto); }
   const Length& FlexBasis() const {
     return rare_non_inherited_data_->flexible_box_data_->flex_basis_;
   }
   void SetFlexBasis(const Length& length) {
     SET_NESTED_VAR(rare_non_inherited_data_, flexible_box_data_, flex_basis_,
                    length);
   }
 
   // flex-direction (aka -webkit-flex-direction)
-  static EFlexDirection InitialFlexDirection() { return kFlowRow; }
+  static EFlexDirection InitialFlexDirection() { return EFlexDirection::kRow; }
   EFlexDirection FlexDirection() const {
     return static_cast<EFlexDirection>(
         rare_non_inherited_data_->flexible_box_data_->flex_direction_);
   }
   void SetFlexDirection(EFlexDirection direction) {
     SET_NESTED_VAR(rare_non_inherited_data_, flexible_box_data_,
-                   flex_direction_, direction);
+                   flex_direction_, static_cast<unsigned>(direction));
   }
 
   // flex-grow (aka -webkit-flex-grow)
   static float InitialFlexGrow() { return 0; }
   float FlexGrow() const {
     return rare_non_inherited_data_->flexible_box_data_->flex_grow_;
   }
   void SetFlexGrow(float f) {
     SET_NESTED_VAR(rare_non_inherited_data_, flexible_box_data_, flex_grow_, f);
   }
@@ skipping 1281 matching lines @@
         .IsTransparent();
   }
   bool ColumnRuleEquivalent(const ComputedStyle* other_style) const;
   void InheritColumnPropertiesFrom(const ComputedStyle& parent) {
     rare_non_inherited_data_.Access()->multi_col_data_ =
         parent.rare_non_inherited_data_->multi_col_data_;
   }
 
   // Flex utility functions.
   bool IsColumnFlexDirection() const {
-    return FlexDirection() == kFlowColumn ||
-           FlexDirection() == kFlowColumnReverse;
+    return FlexDirection() == EFlexDirection::kColumn ||
+           FlexDirection() == EFlexDirection::kColumnReverse;
   }
   bool IsReverseFlexDirection() const {
-    return FlexDirection() == kFlowRowReverse ||
-           FlexDirection() == kFlowColumnReverse;
+    return FlexDirection() == EFlexDirection::kRowReverse ||
+           FlexDirection() == EFlexDirection::kColumnReverse;
   }
   bool HasBoxReflect() const { return BoxReflect(); }
   bool ReflectionDataEquivalent(const ComputedStyle& other) const {
     return DataEquivalent(BoxReflect(), other.BoxReflect());
   }
 
   // Mask utility functions.
   bool HasMask() const {
     return rare_non_inherited_data_->mask_.HasImage() ||
            rare_non_inherited_data_->mask_box_image_.HasImage();
@@ skipping 1496 matching lines @@
       PseudoBitsInternal() | 1 << (pseudo - kFirstPublicPseudoId)));
 }
 
 inline bool ComputedStyle::HasPseudoElementStyle() const {
   return PseudoBitsInternal() & kElementPseudoIdMask;
 }
 
 }  // namespace blink
 
 #endif  // ComputedStyle_h