Place the out of flow positioned blocks

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

Index: third_party/WebKit/Source/core/layout/ng/ng_fragment_builder.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_fragment_builder.cc b/third_party/WebKit/Source/core/layout/ng/ng_fragment_builder.cc
index 4421a432c981e13272cb2b8b2eb5f0c1d737a15f..89f547c022af11b53dc6f89dc4b9c03644f29d45 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_fragment_builder.cc
+++ b/third_party/WebKit/Source/core/layout/ng/ng_fragment_builder.cc
@@ -48,8 +48,9 @@ NGFragmentBuilder& NGFragmentBuilder::SetBlockOverflow(LayoutUnit size) {
   return *this;
 }
 
-NGFragmentBuilder& NGFragmentBuilder::AddChild(NGFragmentBase* child,
-                                               NGLogicalOffset child_offset) {
+NGFragmentBuilder& NGFragmentBuilder::AddChild(
+    NGFragmentBase* child,
+    const NGLogicalOffset& child_offset) {
   DCHECK_EQ(type_, NGPhysicalFragmentBase::kFragmentBox)
       << "Only box fragments can have children";
   children_.append(child->PhysicalFragment());