Make RubyPosition an enum class.

third_party/WebKit/Source/core/dom/ElementTest.cpp

Index: third_party/WebKit/Source/core/dom/ElementTest.cpp
diff --git a/third_party/WebKit/Source/core/dom/ElementTest.cpp b/third_party/WebKit/Source/core/dom/ElementTest.cpp
index afffcd8eb1a20b775cf6b275f81c09d22d0854db..356c6b3b8793b25e92d0749341e6f765e165a809 100644
--- a/third_party/WebKit/Source/core/dom/ElementTest.cpp
+++ b/third_party/WebKit/Source/core/dom/ElementTest.cpp
@@ -211,11 +211,12 @@ TEST_F(ElementTest, StickySubtreesAreTrackedCorrectly) {
   document.View()->UpdateAllLifecyclePhases();
   EXPECT_EQ(DocumentLifecycle::kPaintClean, document.Lifecycle().GetState());
 
-  EXPECT_EQ(kRubyPositionBefore, outer_sticky->StyleRef().GetRubyPosition());
-  EXPECT_EQ(kRubyPositionAfter, child->StyleRef().GetRubyPosition());
-  EXPECT_EQ(kRubyPositionAfter, grandchild->StyleRef().GetRubyPosition());
-  EXPECT_EQ(kRubyPositionAfter, inner_sticky->StyleRef().GetRubyPosition());
-  EXPECT_EQ(kRubyPositionAfter, great_grandchild->StyleRef().GetRubyPosition());
+  EXPECT_EQ(RubyPosition::kBefore, outer_sticky->StyleRef().GetRubyPosition());
+  EXPECT_EQ(RubyPosition::kAfter, child->StyleRef().GetRubyPosition());
+  EXPECT_EQ(RubyPosition::kAfter, grandchild->StyleRef().GetRubyPosition());
+  EXPECT_EQ(RubyPosition::kAfter, inner_sticky->StyleRef().GetRubyPosition());
+  EXPECT_EQ(RubyPosition::kAfter,
+            great_grandchild->StyleRef().GetRubyPosition());
 
   // Setting -webkit-ruby value shouldn't have affected the sticky subtree bit.
   EXPECT_TRUE(outer_sticky->StyleRef().SubtreeIsSticky());