[LayoutNG] Move NGConstraintSpaceBuilder off Oilpan and DISALLOW_NEW.

third_party/WebKit/Source/core/layout/ng/ng_fragment_builder.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 NGFragmentBuilder_h
 #define NGFragmentBuilder_h
 
 #include "core/layout/ng/ng_break_token.h"
 #include "core/layout/ng/ng_constraint_space.h"
 #include "core/layout/ng/ng_floating_object.h"
 #include "core/layout/ng/ng_physical_fragment.h"
 #include "core/layout/ng/ng_units.h"
+#include "wtf/Allocator.h"
 
 namespace blink {
 
 class NGLayoutResult;
 class NGPhysicalTextFragment;
 
 class CORE_EXPORT NGFragmentBuilder final {
+  DISALLOW_NEW();
+
  public:
   NGFragmentBuilder(NGPhysicalFragment::NGFragmentType, NGLayoutInputNode*);
 
   using WeakBoxList = PersistentHeapLinkedHashSet<WeakMember<NGBlockNode>>;
 
   NGFragmentBuilder& SetWritingMode(NGWritingMode);
   NGFragmentBuilder& SetDirection(TextDirection);
 
   NGFragmentBuilder& SetInlineSize(LayoutUnit);
   NGFragmentBuilder& SetBlockSize(LayoutUnit);
@@ skipping 135 matching lines @@
   Vector<NGLogicalOffset> floating_object_offsets_;
   Vector<Persistent<NGFloatingObject>> positioned_floats_;
 
   WTF::Optional<NGLogicalOffset> bfc_offset_;
   NGMarginStrut end_margin_strut_;
 };
 
 }  // namespace blink
 
 #endif  // NGFragmentBuilder