Move oof-descendants to NGPhysicalFragmentBase

third_party/WebKit/Source/core/layout/ng/ng_physical_fragment_base.h

 // 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.
 
 #ifndef NGPhysicalFragmentBase_h
 #define NGPhysicalFragmentBase_h
 
 #include "core/CoreExport.h"
 #include "core/layout/ng/ng_break_token.h"
 #include "core/layout/ng/ng_constraint_space.h"
 #include "core/layout/ng/ng_units.h"
 #include "platform/LayoutUnit.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
+class NGBlockNode;
+
 // The NGPhysicalFragmentBase contains the output information from layout. The
 // fragment stores all of its information in the physical coordinate system for
 // use by paint, hit-testing etc.
 //
 // Layout code should only access output layout information through the
 // NGFragmentBase classes which transforms information into the logical
 // coordinate system.
 class CORE_EXPORT NGPhysicalFragmentBase
     : public GarbageCollectedFinalized<NGPhysicalFragmentBase> {
  public:
@@ skipping 25 matching lines @@
     return offset_.top;
   }
 
   // Should only be used by the parent fragement's layout.
   void SetOffset(NGPhysicalOffset offset) {
     DCHECK(!has_been_placed_);
     offset_ = offset;
     has_been_placed_ = true;
   }
 
-  DEFINE_INLINE_TRACE_AFTER_DISPATCH() { visitor->trace(break_token_); }
+  const HeapLinkedHashSet<WeakMember<NGBlockNode>>& OutOfFlowDescendants()
+      const {
+    return out_of_flow_descendants_;
+  }
+
+  const Vector<NGStaticPosition>& OutOfFlowPositions() const {
+    return out_of_flow_positions_;
+  }
+
+  DECLARE_TRACE_AFTER_DISPATCH();
   DECLARE_TRACE();
 
   void finalizeGarbageCollectedObject();
 
  protected:
-  NGPhysicalFragmentBase(NGPhysicalSize size,
-                         NGPhysicalSize overflow,
-                         NGFragmentType type,
-                         NGBreakToken* break_token = nullptr)
-      : size_(size),
-        overflow_(overflow),
-        break_token_(break_token),
-        type_(type),
-        has_been_placed_(false) {}
+  NGPhysicalFragmentBase(
+      NGPhysicalSize size,
+      NGPhysicalSize overflow,
+      NGFragmentType type,
+      HeapLinkedHashSet<WeakMember<NGBlockNode>>& out_of_flow_descendants,
+      Vector<NGStaticPosition> out_of_flow_positions,
+      NGBreakToken* break_token = nullptr);
 
   NGPhysicalSize size_;
   NGPhysicalSize overflow_;
   NGPhysicalOffset offset_;
   Member<NGBreakToken> break_token_;
+  HeapLinkedHashSet<WeakMember<NGBlockNode>> out_of_flow_descendants_;
+  Vector<NGStaticPosition> out_of_flow_positions_;
 
   unsigned type_ : 1;
   unsigned has_been_placed_ : 1;
 };
 
 }  // namespace blink
 
 #endif  // NGFragmentBase_h