[LayoutNG] Add NGConstraintSpaceBuilder class.

third_party/WebKit/Source/core/layout/ng/ng_physical_constraint_space.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 NGPhysicalConstraintSpace_h
 #define NGPhysicalConstraintSpace_h
 
 #include "core/CoreExport.h"
 #include "core/layout/ng/ng_units.h"
 #include "platform/heap/Handle.h"
@@ skipping 42 matching lines @@
 
   DEFINE_INLINE_TRACE() {}
 };
 
 // The NGPhysicalConstraintSpace contains the underlying data for the
 // NGConstraintSpace. It is not meant to be used directly as all members are in
 // the physical coordinate space. Instead NGConstraintSpace should be used.
 class CORE_EXPORT NGPhysicalConstraintSpace final
     : public GarbageCollectedFinalized<NGPhysicalConstraintSpace> {
  public:
+  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);
+
   NGPhysicalConstraintSpace();
   NGPhysicalConstraintSpace(NGPhysicalSize);
 
   NGPhysicalSize ContainerSize() const { return container_size_; }
 
   void AddExclusion(const NGExclusion*, unsigned options = 0);
   const HeapVector<Member<const NGExclusion>>& Exclusions(
       unsigned options = 0) const;
 
   DEFINE_INLINE_TRACE() { visitor->trace(exclusions_); }
@@ skipping 13 matching lines @@
   // Whether the current constraint space is for the newly established
   // formatting Context
   unsigned is_new_fc_ : 1;
 
   HeapVector<Member<const NGExclusion>> exclusions_;
 };
 
 }  // namespace blink
 
 #endif  // NGPhysicalConstraintSpace_h