[layoutng] Split NGLayoutResult out of NGPhysicalFragment

third_party/WebKit/Source/core/layout/ng/ng_physical_fragment.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 NGPhysicalFragment_h
 #define NGPhysicalFragment_h
 
 #include "core/CoreExport.h"
 #include "core/layout/ng/ng_units.h"
 #include "platform/LayoutUnit.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class LayoutObject;
-class NGBlockNode;
 class NGBreakToken;
-struct NGFloatingObject;
 
-// The NGPhysicalFragment contains the output information from layout. The
+// The NGPhysicalFragment contains the output geometry from layout. The
 // fragment stores all of its information in the physical coordinate system for
 // use by paint, hit-testing etc.
 //
 // The fragment keeps a pointer back to the LayoutObject which generated it.
 // Once we have transitioned fully to LayoutNG it should be a const pointer
 // such that paint/hit-testing/etc don't modify it.
 //
-// Layout code should only access output layout information through the
-// NGFragmentBase classes which transforms information into the logical
+// Layout code should only access geometry information through the
+// NGFragment wrapper classes which transforms information into the logical
 // coordinate system.
 class CORE_EXPORT NGPhysicalFragment : public RefCounted<NGPhysicalFragment> {
  public:
   enum NGFragmentType { kFragmentBox = 0, kFragmentText = 1 };
 
   NGFragmentType Type() const { return static_cast<NGFragmentType>(type_); }
 
   // Override RefCounted's deref() to ensure operator delete is called on the
   // appropriate subclass type.
   void deref() const {
@@ skipping 29 matching lines @@
   void SetOffset(NGPhysicalOffset offset) {
     DCHECK(!is_placed_);
     offset_ = offset;
     is_placed_ = true;
   }
 
   NGBreakToken* BreakToken() const { return break_token_; }
 
   LayoutObject* GetLayoutObject() const { return layout_object_; }
 
-  const HeapLinkedHashSet<WeakMember<NGBlockNode>>& OutOfFlowDescendants()
-      const {
-    return out_of_flow_descendants_;
-  }
-
-  const Vector<NGStaticPosition>& OutOfFlowPositions() const {
-    return out_of_flow_positions_;
-  }
-
   bool IsPlaced() const { return is_placed_; }
 
-  // List of floats that need to be positioned by the next in-flow child that
-  // can determine its position in space.
-  // Use case example where it may be needed:
-  //    <div><float></div>
-  //    <div style="margin-top: 10px; height: 20px"></div>
-  // The float cannot be positioned right away inside of the 1st div because
-  // the vertical position is not known at that moment. It will be known only
-  // after the 2nd div collapses its margin with its parent.
-  const Vector<Persistent<NGFloatingObject>>& UnpositionedFloats() const {
-    return unpositioned_floats_;
-  }
-
-  // List of positioned float that need to be copied to the old layout tree.
-  // TODO(layout-ng): remove this once we change painting code to handle floats
-  // differently.
-  const Vector<Persistent<NGFloatingObject>>& PositionedFloats() const {
-    return positioned_floats_;
-  }
-
  protected:
   NGPhysicalFragment(LayoutObject* layout_object,
                      NGPhysicalSize size,
                      NGPhysicalSize overflow,
                      NGFragmentType type,
-                     PersistentHeapLinkedHashSet<WeakMember<NGBlockNode>>&
-                         out_of_flow_descendants,
-                     Vector<NGStaticPosition> out_of_flow_positions,
-                     Vector<Persistent<NGFloatingObject>>& unpositioned_floats,
-                     Vector<Persistent<NGFloatingObject>>& positioned_floats,
                      NGBreakToken* break_token = nullptr);
 
   LayoutObject* layout_object_;
   NGPhysicalSize size_;
   NGPhysicalSize overflow_;
   NGPhysicalOffset offset_;
   Persistent<NGBreakToken> break_token_;
-  PersistentHeapLinkedHashSet<WeakMember<NGBlockNode>> out_of_flow_descendants_;
-  Vector<NGStaticPosition> out_of_flow_positions_;
-  Vector<Persistent<NGFloatingObject>> unpositioned_floats_;
-  Vector<Persistent<NGFloatingObject>> positioned_floats_;
 
   unsigned type_ : 1;
   unsigned is_placed_ : 1;
 
  private:
   void destroy() const;
 };
 
 }  // namespace blink
 
 #endif  // NGPhysicalFragment_h