[LayoutNG] Add writing mode to NGDerivedConstraintSpace

third_party/WebKit/Source/core/layout/ng/ng_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 NGFragment_h
 #define NGFragment_h
 
 #include "core/CoreExport.h"
 #include "core/layout/ng/ng_fragment_base.h"
+#include "core/layout/ng/ng_constraint_space.h"
 #include "platform/LayoutUnit.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class CORE_EXPORT NGFragment final : public NGFragmentBase {
  public:
   NGFragment(LayoutUnit inlineSize,
              LayoutUnit blockSize,
@@ skipping 18 matching lines @@
     m_children.swap(children);
   }
 
  private:
   HeapVector<Member<const NGFragmentBase>> m_children;
 };
 
 }  // namespace blink
 
 #endif  // NGFragment_h