Top down version of algorithm to position margins and floats in LayoutNG

third_party/WebKit/Source/core/layout/ng/ng_physical_box_fragment.cc

Index: third_party/WebKit/Source/core/layout/ng/ng_physical_box_fragment.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_physical_box_fragment.cc b/third_party/WebKit/Source/core/layout/ng/ng_physical_box_fragment.cc
index 8efd4f90a26a0ac8858ea971646e128b2ee7a76d..845b55fb7429b0b769db1241155bd6b2b53be948 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_physical_box_fragment.cc
+++ b/third_party/WebKit/Source/core/layout/ng/ng_physical_box_fragment.cc
@@ -13,9 +13,10 @@ NGPhysicalBoxFragment::NGPhysicalBoxFragment(
     HeapVector<Member<NGPhysicalFragment>>& children,
     HeapLinkedHashSet<WeakMember<NGBlockNode>>& out_of_flow_descendants,
     Vector<NGStaticPosition>& out_of_flow_positions,
-    NGDeprecatedMarginStrut margin_strut,
     HeapVector<Member<NGFloatingObject>>& unpositioned_floats,
     HeapVector<Member<NGFloatingObject>>& positioned_floats,
+    const WTF::Optional<NGLogicalOffset>& bfc_offset,
+    const NGMarginStrut& end_margin_strut,
     NGBreakToken* break_token)
     : NGPhysicalFragment(layout_object,
                          size,
@@ -26,7 +27,8 @@ NGPhysicalBoxFragment::NGPhysicalBoxFragment(
                          unpositioned_floats,
                          positioned_floats,
                          break_token),
-      margin_strut_(margin_strut) {
+      bfc_offset_(bfc_offset),
+      end_margin_strut_(end_margin_strut) {
   children_.swap(children);
 }