[LayoutNG] Add out-of-flow descendants and offsets to NGPhysicalFragment

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

Index: third_party/WebKit/Source/core/layout/ng/ng_physical_fragment.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_physical_fragment.cc b/third_party/WebKit/Source/core/layout/ng/ng_physical_fragment.cc
index ea4a1c037241c2e17d1738b279cec7320f36726b..2b287d67eca288cd169baeb49b05705f424b9f0f 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_physical_fragment.cc
+++ b/third_party/WebKit/Source/core/layout/ng/ng_physical_fragment.cc
@@ -13,14 +13,19 @@ NGPhysicalFragment::NGPhysicalFragment(
     NGPhysicalSize size,
     NGPhysicalSize overflow,
     HeapVector<Member<const NGPhysicalFragmentBase>>& children,
+    HeapLinkedHashSet<WeakMember<NGBox>>& out_of_flow_descendants,
+    Vector<NGLogicalOffset> out_of_flow_offsets,
     NGMarginStrut margin_strut)
     : NGPhysicalFragmentBase(size, overflow, FragmentBox),
       margin_strut_(margin_strut) {
   children_.swap(children);
+  out_of_flow_descendants_.swap(out_of_flow_descendants);
+  out_of_flow_offsets_.swap(out_of_flow_offsets);
 }
 
 DEFINE_TRACE_AFTER_DISPATCH(NGPhysicalFragment) {
   visitor->trace(children_);
+  visitor->trace(out_of_flow_descendants_);
   NGPhysicalFragmentBase::traceAfterDispatch(visitor);
 }