Changed TextDirection to an enum class and renamed its members

third_party/WebKit/Source/core/layout/ng/ng_text_layout_algorithm.cc

 // Copyright 2016 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/layout/ng/ng_text_layout_algorithm.h"
 
 #include "core/layout/ng/ng_bidi_paragraph.h"
 #include "core/layout/ng/ng_break_token.h"
 #include "core/layout/ng/ng_constraint_space.h"
 #include "core/layout/ng/ng_fragment.h"
@@ skipping 68 matching lines @@
 
   // TODO(kojii): atomic inline is not well-thought yet.
   // TODO(kojii): oof is not well-thought yet. The bottom static position may be
   // in the next line, https://github.com/w3c/csswg-drafts/issues/609
   // TODO(kojii): need to split TextFragment if:
   // * oof static position is needed.
   // * nested borders?
 
   if (!inline_box_->IsBidiEnabled()) {
     // If no bidi reordering, the logical order is the visual order.
-    DCHECK_EQ(constraint_space.Direction(), LTR);
-    DCHECK_EQ(items[0].Style()->direction(), LTR);
+    DCHECK_EQ(constraint_space.Direction(), TextDirection::Ltr);
+    DCHECK_EQ(items[0].Style()->direction(), TextDirection::Ltr);
     fragments_out->append(new NGTextFragment(
         constraint_space.WritingMode(), constraint_space.Direction(),
         text_builder.ToTextFragment(inline_box_, items.StartIndex(),
                                     items.EndIndex())));
     logical_offsets_out->append(NGLogicalOffset());
     return;
   }
 
   // TODO(kojii): UAX#9 L1 is not supported yet. Supporting L1 may change
   // embedding levels of parts of runs, which requires to split items.
@@ skipping 48 matching lines @@
 }
 
 DEFINE_TRACE(NGTextLayoutAlgorithm) {
   NGLayoutAlgorithm::trace(visitor);
   visitor->trace(inline_box_);
   visitor->trace(constraint_space_);
   visitor->trace(break_token_);
 }
 
 }  // namespace blink