Make TextEmphasisPosition 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 1763 matching lines @@
 
   // -webkit-text-emphasis-color (aka -epub-text-emphasis-color)
   void SetTextEmphasisColor(const StyleColor& color) {
     SET_VAR(rare_inherited_data_, text_emphasis_color_, color.Resolve(Color()));
     SET_VAR(rare_inherited_data_, text_emphasis_color_is_current_color_,
             color.IsCurrentColor());
   }
 
   // -webkit-text-emphasis-position
   static TextEmphasisPosition InitialTextEmphasisPosition() {
-    return kTextEmphasisPositionOver;
+    return TextEmphasisPosition::kOver;
   }
   TextEmphasisPosition GetTextEmphasisPosition() const {
     return static_cast<TextEmphasisPosition>(
         rare_inherited_data_->text_emphasis_position_);
   }
   void SetTextEmphasisPosition(TextEmphasisPosition position) {
-    SET_VAR(rare_inherited_data_, text_emphasis_position_, position);
+    SET_VAR(rare_inherited_data_, text_emphasis_position_,
+            static_cast<unsigned>(position));
   }
 
   // -webkit-highlight
   static const AtomicString& InitialHighlight() { return g_null_atom; }
   const AtomicString& Highlight() const {
     return rare_inherited_data_->highlight_;
   }
   void SetHighlight(const AtomicString& h) {
     SET_VAR(rare_inherited_data_, highlight_, h);
   }
@@ skipping 1943 matching lines @@
       PseudoBitsInternal() | 1 << (pseudo - kFirstPublicPseudoId)));
 }
 
 inline bool ComputedStyle::HasPseudoElementStyle() const {
   return PseudoBitsInternal() & kElementPseudoIdMask;
 }
 
 }  // namespace blink
 
 #endif  // ComputedStyle_h