Changed ECaptionSide to an enum class and renamed its members to keywords

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 e7305dab6b562385aeab6c6f246675e9cd774350..da4362279efd2a91f7f0501ace0fcd0c75f51c92 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyleConstants.h
+++ b/third_party/WebKit/Source/core/style/ComputedStyleConstants.h
@@ -398,8 +398,8 @@ enum EEmptyCells {
     EmptyCellsShow, EmptyCellsHide
 };
 
-enum ECaptionSide {
-    CaptionSideTop, CaptionSideBottom, CaptionSideLeft, CaptionSideRight
+enum class ECaptionSide : unsigned {
+    Top, Bottom, Left, Right
 };
 
 enum EListStylePosition { ListStylePositionOutside, ListStylePositionInside };