[LayoutNG] Add writing mode to NGDerivedConstraintSpace

third_party/WebKit/Source/core/layout/ng/ng_fragment_base.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 NGFragmentBase_h
 #define NGFragmentBase_h
 
 #include "core/CoreExport.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 NGFragmentBase : public GarbageCollected<NGFragmentBase> {
  public:
   enum NGFragmentType { FragmentBox = 0, FragmentText = 1 };
 
-  // TODO(eae): We might want to re-use WritingMode and Direction from style.
-  enum NGWritingMode {
-    HorizontalTopBottom = 0,
-    VerticalRightLeft = 1,
-    VerticalLeftRight = 2,
-    SidewaysRightLeft = 3,
-    SidewaysLeftRight = 4
-  };
-  enum NGDirection { LeftToRight = 0, RightToLeft = 1 };
-
   NGFragmentType type() const { return static_cast<NGFragmentType>(m_type); }
   NGWritingMode writingMode() const {
     return static_cast<NGWritingMode>(m_writingMode);
   }
   NGDirection direction() const {
     return static_cast<NGDirection>(m_direction);
   }
 
   // Returns the border-box size.
   LayoutUnit inlineSize() const { return m_inlineSize; }
@@ skipping 31 matching lines @@
 
   unsigned m_type : 1;
   unsigned m_writingMode : 3;
   unsigned m_direction : 1;
   unsigned m_hasBeenPlaced : 1;
 };
 
 }  // namespace blink
 
 #endif  // NGFragmentBase_h