Convert XFA_ELEMENT to an enum class

xfa/fxfa/parser/cxfa_box.h

 // Copyright 2016 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef XFA_FXFA_PARSER_CXFA_BOX_H_
 #define XFA_FXFA_PARSER_CXFA_BOX_H_
 
 #include "core/fxcrt/include/fx_system.h"
 #include "xfa/fxfa/parser/cxfa_data.h"
 #include "xfa/fxfa/parser/cxfa_edge.h"
 #include "xfa/fxfa/parser/cxfa_fill.h"
 #include "xfa/fxfa/parser/cxfa_margin.h"
 
 class CXFA_Node;
 
 class CXFA_Box : public CXFA_Data {
  public:
   explicit CXFA_Box(CXFA_Node* pNode) : CXFA_Data(pNode) {}
 
-  bool IsArc() const { return GetClassID() == XFA_ELEMENT_Arc; }
-  bool IsBorder() const { return GetClassID() == XFA_ELEMENT_Border; }
-  bool IsRectangle() const { return GetClassID() == XFA_ELEMENT_Rectangle; }
+  bool IsArc() const { return GetClassID() == XFA_Element::Arc; }
+  bool IsBorder() const { return GetClassID() == XFA_Element::Border; }
+  bool IsRectangle() const { return GetClassID() == XFA_Element::Rectangle; }
   int32_t GetHand() const;
   int32_t GetPresence() const;
   int32_t CountEdges() const;
   CXFA_Edge GetEdge(int32_t nIndex = 0) const;
   void GetStrokes(CXFA_StrokeArray& strokes) const;
   FX_BOOL IsCircular() const;
   FX_BOOL GetStartAngle(FX_FLOAT& fStartAngle) const;
   FX_FLOAT GetStartAngle() const {
     FX_FLOAT fStartAngle;
     GetStartAngle(fStartAngle);
     return fStartAngle;
   }
 
   FX_BOOL GetSweepAngle(FX_FLOAT& fSweepAngle) const;
   FX_FLOAT GetSweepAngle() const {
     FX_FLOAT fSweepAngle;
     GetSweepAngle(fSweepAngle);
     return fSweepAngle;
   }
 
   CXFA_Fill GetFill(FX_BOOL bModified = FALSE) const;
   CXFA_Margin GetMargin() const;
   int32_t Get3DStyle(FX_BOOL& bVisible, FX_FLOAT& fThickness) const;
 };
 
 #endif  // XFA_FXFA_PARSER_CXFA_BOX_H_