Make Hyphens 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 1591 matching lines @@
     rare_non_inherited_data_.Access()->mask_box_image_.SetBorderSlices(slices);
   }
 
   // Inherited properties.
 
   // color
   static Color InitialColor() { return Color::kBlack; }
   void SetColor(const Color&);
 
   // hyphens
-  static Hyphens InitialHyphens() { return kHyphensManual; }
+  static Hyphens InitialHyphens() { return Hyphens::kManual; }
   Hyphens GetHyphens() const {
     return static_cast<Hyphens>(rare_inherited_data_->hyphens_);
   }
-  void SetHyphens(Hyphens h) { SET_VAR(rare_inherited_data_, hyphens_, h); }
+  void SetHyphens(Hyphens h) {
+    SET_VAR(rare_inherited_data_, hyphens_, static_cast<unsigned>(h));
+  }
 
   // -webkit-hyphenate-character
   static const AtomicString& InitialHyphenationString() { return g_null_atom; }
   const AtomicString& HyphenationString() const {
     return rare_inherited_data_->hyphenation_string_;
   }
   void SetHyphenationString(const AtomicString& h) {
     SET_VAR(rare_inherited_data_, hyphenation_string_, h);
   }
 
@@ skipping 2151 matching lines @@
       PseudoBitsInternal() | 1 << (pseudo - kFirstPublicPseudoId)));
 }
 
 inline bool ComputedStyle::HasPseudoElementStyle() const {
   return PseudoBitsInternal() & kElementPseudoIdMask;
 }
 
 }  // namespace blink
 
 #endif  // ComputedStyle_h