Reland of Use NGLogicalRect instead of NGExclusion for exclusions.

third_party/WebKit/Source/core/layout/ng/ng_physical_constraint_space.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_physical_constraint_space.h"
 
 namespace blink {
 
 NGPhysicalConstraintSpace::NGPhysicalConstraintSpace(
     NGPhysicalSize container_size,
     bool fixed_width,
     bool fixed_height,
     bool width_direction_triggers_scrollbar,
     bool height_direction_triggers_scrollbar,
     NGFragmentationType width_direction_fragmentation_type,
     NGFragmentationType height_direction_fragmentation_type,
     bool is_new_fc)
     : container_size_(container_size),
       fixed_width_(fixed_width),
       fixed_height_(fixed_height),
       width_direction_triggers_scrollbar_(width_direction_triggers_scrollbar),
       height_direction_triggers_scrollbar_(height_direction_triggers_scrollbar),
       width_direction_fragmentation_type_(width_direction_fragmentation_type),
       height_direction_fragmentation_type_(height_direction_fragmentation_type),
       is_new_fc_(is_new_fc) {}
 
-void NGPhysicalConstraintSpace::AddExclusion(const NGExclusion* exclusion,
+void NGPhysicalConstraintSpace::AddExclusion(const NGLogicalRect& exclusion,
                                              unsigned options) {
-  exclusions_.append(exclusion);
+  NGLogicalRect* exclusion_ptr = new NGLogicalRect(exclusion);
+  exclusions_.append(WTF::wrapUnique(exclusion_ptr));
 }
 
-const HeapVector<Member<const NGExclusion>>&
+const Vector<std::unique_ptr<const NGLogicalRect>>&
 NGPhysicalConstraintSpace::Exclusions(unsigned options) const {
   // TODO(layout-ng): Filter based on options? Perhaps layout Opportunities
   // should filter instead?
   return exclusions_;
 }
 
 }  // namespace blink