Moved overflow-x and overflow-y to be generated in ComputedStyleBase.

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 eb1521af91f04eb5ecd99c40fdb72f29b6704578..7a4840ba68dc22a4e9257d13f23ab89af572944c 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyleConstants.h
+++ b/third_party/WebKit/Source/core/style/ComputedStyleConstants.h
@@ -144,16 +144,6 @@ enum class EBoxSizing : unsigned { kContentBox, kBorderBox };
 
 // Random visual rendering model attributes. Not inherited.
 
-enum class EOverflow : unsigned {
-  kVisible,
-  kHidden,
-  kScroll,
-  kAuto,
-  kOverlay,
-  kWebkitPagedX,
-  kWebkitPagedY
-};
-
 enum class EVerticalAlign : unsigned {
   kBaseline,
   kMiddle,