[Alignment] Single class for holding the alignment data.

Source/core/layout/LayoutMenuList.cpp

Index: Source/core/layout/LayoutMenuList.cpp
diff --git a/Source/core/layout/LayoutMenuList.cpp b/Source/core/layout/LayoutMenuList.cpp
index 449c6bce9d36a0ef959bde30370794fe16d3d1ef..8dfcb21badb4961b7c378902e701b7c0cd9f3687 100644
--- a/Source/core/layout/LayoutMenuList.cpp
+++ b/Source/core/layout/LayoutMenuList.cpp
@@ -109,10 +109,10 @@ void LayoutMenuList::adjustInnerStyle()
     // Use margin:auto instead of align-items:center to get safe centering, i.e.
     // when the content overflows, treat it the same as align-items: flex-start.
     // But we only do that for the cases where html.css would otherwise use center.
-    if (style()->alignItems() == ItemPositionCenter) {
+    if (style()->alignItemsPosition() == ItemPositionCenter) {
         innerStyle.setMarginTop(Length());
         innerStyle.setMarginBottom(Length());
-        innerStyle.setAlignSelf(ItemPositionFlexStart);
+        innerStyle.setAlignSelfPosition(ItemPositionFlexStart);
     }
 
     innerStyle.setPaddingLeft(Length(LayoutTheme::theme().popupInternalPaddingLeft(styleRef()), Fixed));