Make TextDecoration an enum class.

third_party/WebKit/Source/core/css/ComputedStyleCSSValueMapping.cpp

 /*
  * Copyright (C) 2004 Zack Rusin <zack@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc.
  * All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  * Copyright (C) 2011 Sencha, Inc. All rights reserved.
  * Copyright (C) 2015 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1115 matching lines @@
 static LayoutRect SizingBox(const LayoutObject* layout_object) {
   if (!layout_object->IsBox())
     return LayoutRect();
 
   const LayoutBox* box = ToLayoutBox(layout_object);
   return box->Style()->BoxSizing() == EBoxSizing::kBorderBox
              ? box->BorderBoxRect()
              : box->ComputedCSSContentBoxRect();
 }
 
-static CSSValue* RenderTextDecorationFlagsToCSSValue(int text_decoration) {
+static CSSValue* RenderTextDecorationFlagsToCSSValue(
+    TextDecoration text_decoration) {
   // Blink value is ignored.
   CSSValueList* list = CSSValueList::CreateSpaceSeparated();
-  if (text_decoration & kTextDecorationUnderline)
+  if (EnumHasFlags(text_decoration, TextDecoration::kUnderline))
     list->Append(*CSSIdentifierValue::Create(CSSValueUnderline));
-  if (text_decoration & kTextDecorationOverline)
+  if (EnumHasFlags(text_decoration, TextDecoration::kOverline))
     list->Append(*CSSIdentifierValue::Create(CSSValueOverline));
-  if (text_decoration & kTextDecorationLineThrough)
+  if (EnumHasFlags(text_decoration, TextDecoration::kLineThrough))
     list->Append(*CSSIdentifierValue::Create(CSSValueLineThrough));
 
   if (!list->length())
     return CSSIdentifierValue::Create(CSSValueNone);
   return list;
 }
 
 static CSSValue* ValueForTextDecorationStyle(
     TextDecorationStyle text_decoration_style) {
   switch (text_decoration_style) {
@@ skipping 2594 matching lines @@
     case CSSPropertyAll:
       return nullptr;
     default:
       break;
   }
   NOTREACHED();
   return nullptr;
 }
 
 }  // namespace blink