Make Hyphens an enum class.

third_party/WebKit/Source/core/layout/line/BreakingContextInlineHeaders.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc.
  *               All right reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated.
  *
  * 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
@@ skipping 951 matching lines @@
                                layout_text.IsCombineText() &&
                                LineLayoutTextCombine(layout_text).IsCombined();
 
   // This is currently only used for word-break: break-all, specifically for the
   // case where we have a break opportunity within a word, then a string of non-
   // breakable content that ends up making our word wider than the current line.
   // See: fast/css3-text/css3-word-break/word-break-all-wrap-with-floats.html
   float width_measurement_at_last_break_opportunity = 0;
 
   Hyphenation* hyphenation = auto_wrap_ ? style.GetHyphenation() : nullptr;
-  bool disable_soft_hyphen = style.GetHyphens() == kHyphensNone;
+  bool disable_soft_hyphen = style.GetHyphens() == Hyphens::kNone;
   float hyphen_width = 0;
   bool is_line_empty = line_info_.IsEmpty();
 
   if (layout_text.IsSVGInlineText()) {
     break_words = false;
     break_all = false;
     keep_all = false;
   }
 
   // Use LineBreakType::Normal for break-all. When a word does not fit,
@@ skipping 583 matching lines @@
 
   if (style.GetTextIndentType() == kTextIndentHanging)
     indent_text = indent_text == kIndentText ? kDoNotIndentText : kIndentText;
 
   return indent_text;
 }
 
 }  // namespace blink
 
 #endif  // BreakingContextInlineHeaders_h