Make TextDecoration an enum class.

third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp

 /*
 * Copyright (C) 2008 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 1017 matching lines @@
 
   const ComputedStyle* style = GetLayoutObject()->Style();
   if (!style)
     return AXNodeObject::GetTextStyle();
 
   unsigned text_style = kTextStyleNone;
   if (style->GetFontWeight() == kFontWeightBold)
     text_style |= kTextStyleBold;
   if (style->GetFontDescription().Style() == kFontStyleItalic)
     text_style |= kTextStyleItalic;
-  if (style->GetTextDecoration() == kTextDecorationUnderline)
+  if (style->GetTextDecoration() == TextDecoration::kUnderline)
     text_style |= kTextStyleUnderline;
-  if (style->GetTextDecoration() == kTextDecorationLineThrough)
+  if (style->GetTextDecoration() == TextDecoration::kLineThrough)
     text_style |= kTextStyleLineThrough;
 
   return static_cast<TextStyle>(text_style);
 }
 
 KURL AXLayoutObject::Url() const {
   if (IsAnchor() && isHTMLAnchorElement(layout_object_->GetNode())) {
     if (HTMLAnchorElement* anchor = toHTMLAnchorElement(AnchorElement()))
       return anchor->Href();
   }
@@ skipping 1461 matching lines @@
 
 bool AXLayoutObject::ElementAttributeValue(
     const QualifiedName& attribute_name) const {
   if (!layout_object_)
     return false;
 
   return EqualIgnoringASCIICase(GetAttribute(attribute_name), "true");
 }
 
 }  // namespace blink