Make RubyPosition an enum class.

third_party/WebKit/Source/core/layout/line/InlineFlowBox.cpp

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc.
  *               All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 776 matching lines @@
     curr->SetLogicalTop(new_logical_top);
 
     if (child_affects_top_bottom_pos) {
       if (curr->GetLineLayoutItem().IsRubyRun()) {
         // Treat the leading on the first and last lines of ruby runs as not
         // being part of the overall lineTop/lineBottom.
         // Really this is a workaround hack for the fact that ruby should have
         // been done as line layout and not done using inline-block.
         if (GetLineLayoutItem().Style()->IsFlippedLinesWritingMode() ==
             (curr->GetLineLayoutItem().Style()->GetRubyPosition() ==
-             kRubyPositionAfter))
+             RubyPosition::kAfter))
           has_annotations_before = true;
         else
           has_annotations_after = true;
 
         LineLayoutRubyRun ruby_run =
             LineLayoutRubyRun(curr->GetLineLayoutItem());
         if (LineLayoutRubyBase ruby_base = ruby_run.RubyBase()) {
           LayoutUnit bottom_ruby_base_leading =
               (curr->LogicalHeight() - ruby_base.LogicalBottom()) +
               ruby_base.LogicalHeight() -
@@ skipping 698 matching lines @@
       continue;  // Positioned placeholders don't affect calculations.
 
     if (curr->IsInlineFlowBox())
       result = std::max(result,
                         ToInlineFlowBox(curr)->ComputeOverAnnotationAdjustment(
                             allowed_position));
 
     if (curr->GetLineLayoutItem().IsAtomicInlineLevel() &&
         curr->GetLineLayoutItem().IsRubyRun() &&
         curr->GetLineLayoutItem().Style()->GetRubyPosition() ==
-            kRubyPositionBefore) {
+            RubyPosition::kBefore) {
       LineLayoutRubyRun ruby_run = LineLayoutRubyRun(curr->GetLineLayoutItem());
       LineLayoutRubyText ruby_text = ruby_run.RubyText();
       if (!ruby_text)
         continue;
 
       if (!ruby_run.Style()->IsFlippedLinesWritingMode()) {
         LayoutUnit top_of_first_ruby_text_line =
             ruby_text.LogicalTop() + (ruby_text.FirstRootBox()
                                           ? ruby_text.FirstRootBox()->LineTop()
                                           : LayoutUnit());
@@ skipping 50 matching lines @@
       continue;  // Positioned placeholders don't affect calculations.
 
     if (curr->IsInlineFlowBox())
       result = std::max(result,
                         ToInlineFlowBox(curr)->ComputeUnderAnnotationAdjustment(
                             allowed_position));
 
     if (curr->GetLineLayoutItem().IsAtomicInlineLevel() &&
         curr->GetLineLayoutItem().IsRubyRun() &&
         curr->GetLineLayoutItem().Style()->GetRubyPosition() ==
-            kRubyPositionAfter) {
+            RubyPosition::kAfter) {
       LineLayoutRubyRun ruby_run = LineLayoutRubyRun(curr->GetLineLayoutItem());
       LineLayoutRubyText ruby_text = ruby_run.RubyText();
       if (!ruby_text)
         continue;
 
       if (ruby_run.Style()->IsFlippedLinesWritingMode()) {
         LayoutUnit top_of_first_ruby_text_line =
             ruby_text.LogicalTop() + (ruby_text.FirstRootBox()
                                           ? ruby_text.FirstRootBox()->LineTop()
                                           : LayoutUnit());
@@ skipping 109 matching lines @@
   InlineBox::ShowLineTreeAndMark(marked_box1, marked_label1, marked_box2,
                                  marked_label2, obj, depth);
   for (const InlineBox* box = FirstChild(); box; box = box->NextOnLine())
     box->ShowLineTreeAndMark(marked_box1, marked_label1, marked_box2,
                              marked_label2, obj, depth + 1);
 }
 
 #endif
 
 }  // namespace blink