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 5efade95d908501ebf1c0578740ca485c7159bc8..547ce8dba57d291d1a9ebb1772ce7ad380fd4460 100644
--- a/Source/core/rendering/style/RenderStyleConstants.h
+++ b/Source/core/rendering/style/RenderStyleConstants.h
@@ -52,8 +52,6 @@ enum PrintColorAdjust {
 // - StyleDifferenceRepaint - The object just needs to be repainted.
 // - StyleDifferenceRepaintLayer - The layer and its descendant layers need to be repainted.
 // - StyleDifferenceLayoutPositionedMovementOnly - Only the position of this positioned object has been updated.
-// - StyleDifferenceSimplifiedLayout - Only overflow needs to be recomputed.
-// - StyleDifferenceSimplifiedLayoutAndPositionedMovement - Both positioned movement and simplified layout updates are required.
 // - StyleDifferenceLayout - A full layout is required.
 enum StyleDifference {
     StyleDifferenceEqual,
@@ -61,8 +59,6 @@ enum StyleDifference {
     StyleDifferenceRepaint,
     StyleDifferenceRepaintLayer,
     StyleDifferenceLayoutPositionedMovementOnly,
-    StyleDifferenceSimplifiedLayout,
-    StyleDifferenceSimplifiedLayoutAndPositionedMovement,
     StyleDifferenceLayout
 };