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

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/layout/ng/ng_fragment_builder.h"
+#include "core/layout/ng/ng_box.h"
+#include "core/style/ComputedStyle.h"
 
 namespace blink {
 
 NGFragmentBuilder::NGFragmentBuilder(
     NGPhysicalFragmentBase::NGFragmentType type)
     : type_(type), writing_mode_(HorizontalTopBottom), direction_(LTR) {}
 
 NGFragmentBuilder& NGFragmentBuilder::SetWritingMode(
     NGWritingMode writing_mode) {
   writing_mode_ = writing_mode;
@@ skipping 56 matching lines @@
   NGPhysicalSize physical_size = size_.ConvertToPhysical(writing_mode_);
   HeapVector<Member<const NGPhysicalFragmentBase>> children;
   children.reserveCapacity(children_.size());
 
   for (size_t i = 0; i < children_.size(); ++i) {
     NGPhysicalFragmentBase* child = children_[i].get();
     child->SetOffset(offsets_[i].ConvertToPhysical(
         writing_mode_, direction_, physical_size, child->Size()));
     children.append(child);
   }
-  return new NGPhysicalFragment(physical_size,
-                                overflow_.ConvertToPhysical(writing_mode_),
-                                children, margin_strut_);
+  return new NGPhysicalFragment(
+      physical_size, overflow_.ConvertToPhysical(writing_mode_), children,
+      out_of_flow_descendants_, out_of_flow_offsets_, margin_strut_);
+}
+
+DEFINE_TRACE(NGFragmentBuilder) {
+  visitor->trace(children_);
+  visitor->trace(out_of_flow_descendants_);
 }
 
 }  // namespace blink