Make TextDecoration an enum class.

third_party/WebKit/Source/core/style/AppliedTextDecoration.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/style/AppliedTextDecoration.h"
 
 namespace blink {
 
 AppliedTextDecoration::AppliedTextDecoration(TextDecoration line,
                                              TextDecorationStyle style,
                                              Color color)
-    : lines_(line), style_(style), color_(color) {}
+    : lines_(static_cast<unsigned>(line)), style_(style), color_(color) {}

[Bugs Nash, 2017/04/27 00:53:54]

Hm. I think this would be better changes to TextDecoration type in
AppliedTextDecoration

[shend, 2017/04/27 01:09:17]

Hmm, I don't think we can store it as TextDecoration because it's being stored
as an unsigned for bitfield packing.

[Bugs Nash, 2017/04/27 01:59:30]

would changing the type of TextDecoration from the default int to unsigned solve
that problem?

 
 bool AppliedTextDecoration::operator==(const AppliedTextDecoration& o) const {
   return color_ == o.color_ && lines_ == o.lines_ && style_ == o.style_;
 }
 
 }  // namespace blink