Recompute overflow after transform changes

Source/core/rendering/style/RenderStyleConstants.h

Index: Source/core/rendering/style/RenderStyleConstants.h
diff --git a/Source/core/rendering/style/RenderStyleConstants.h b/Source/core/rendering/style/RenderStyleConstants.h
index 40b7c75d3eed7800d1e6a93128c2b8e68b38eb28..28106a75248861aaeba17d1ab27a1a85209ad4a4 100644
--- a/Source/core/rendering/style/RenderStyleConstants.h
+++ b/Source/core/rendering/style/RenderStyleConstants.h
@@ -51,9 +51,7 @@ enum PrintColorAdjust {
 // (4) StyleDifferenceRepaintIfTextOrColorChange - The object needs to be repainted if it contains text or properties dependent on color (e.g., border or outline).
 // (5) StyleDifferenceRepaintLayer - The layer and its descendant layers needs to be repainted.
 // (6) StyleDifferenceLayoutPositionedMovementOnly - Only the position of this positioned object has been updated.
-// (7) StyleDifferenceSimplifiedLayout - Only overflow needs to be recomputed.
-// (8) StyleDifferenceSimplifiedLayoutAndPositionedMovement - Both positioned movement and simplified layout updates are required.
-// (9) StyleDifferenceLayout - A full layout is required.
+// (7) StyleDifferenceLayout - A full layout is required.
 enum StyleDifference {
     StyleDifferenceEqual,
     StyleDifferenceRecompositeLayer,
@@ -61,8 +59,6 @@ enum StyleDifference {
     StyleDifferenceRepaintIfTextOrColorChange,
     StyleDifferenceRepaintLayer,
     StyleDifferenceLayoutPositionedMovementOnly,
-    StyleDifferenceSimplifiedLayout,
-    StyleDifferenceSimplifiedLayoutAndPositionedMovement,
     StyleDifferenceLayout
 };