Make TextEmphasisMark an enum class.

third_party/WebKit/Source/core/style/ComputedStyleConstants.h

Index: third_party/WebKit/Source/core/style/ComputedStyleConstants.h
diff --git a/third_party/WebKit/Source/core/style/ComputedStyleConstants.h b/third_party/WebKit/Source/core/style/ComputedStyleConstants.h
index 9470f91f57498b00d7f2d670a33729adeadb8ed6..5779cf019a08f9d9a6a092c421d3bbf9fefe2f02 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyleConstants.h
+++ b/third_party/WebKit/Source/core/style/ComputedStyleConstants.h
@@ -292,15 +292,15 @@ enum class ESpeak {
 
 enum class TextEmphasisFill { kFilled, kOpen };
 
-enum TextEmphasisMark {
-  kTextEmphasisMarkNone,
-  kTextEmphasisMarkAuto,
-  kTextEmphasisMarkDot,
-  kTextEmphasisMarkCircle,
-  kTextEmphasisMarkDoubleCircle,
-  kTextEmphasisMarkTriangle,
-  kTextEmphasisMarkSesame,
-  kTextEmphasisMarkCustom
+enum class TextEmphasisMark {
+  kNone,
+  kAuto,
+  kDot,
+  kCircle,
+  kDoubleCircle,
+  kTriangle,
+  kSesame,
+  kCustom
 };
 
 enum class TextEmphasisPosition { kOver, kUnder };