Convert border style defines to an enum class.

core/fpdfdoc/include/fpdf_doc.h

 // Copyright 2014 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 CORE_FPDFDOC_INCLUDE_FPDF_DOC_H_
 #define CORE_FPDFDOC_INCLUDE_FPDF_DOC_H_
 
 #include <map>
@@ skipping 30 matching lines @@
 class CPDF_Page;
 class CPDF_PageObject;
 class CPDF_Font;
 class CPDF_Form;
 class CPDF_RenderOptions;
 class CPDF_RenderContext;
 class CPDF_ViewerPreferences;
 class CXML_Element;
 class CFX_RenderDevice;
 
+enum class BorderStyle { SOLID, DASH, BEVELED, INSET, UNDERLINE };
+
 class CPDF_NameTree {
  public:
   explicit CPDF_NameTree(CPDF_Dictionary* pRoot) : m_pRoot(pRoot) {}
   CPDF_NameTree(CPDF_Document* pDoc, const CFX_ByteString& category);
 
   CPDF_Object* LookupValue(int nIndex, CFX_ByteString& csName) const;
   CPDF_Object* LookupValue(const CFX_ByteString& csName) const;
   CPDF_Array* LookupNamedDest(CPDF_Document* pDoc, const CFX_ByteString& sName);
   int GetIndex(const CFX_ByteString& csName) const;
   size_t GetCount() const;
@@ skipping 954 matching lines @@
                         FX_FLOAT fc[4],
                         const CFX_ByteString& csEntry) const;
 
   CFX_WideString GetCaption(const CFX_ByteString& csEntry) const;
   CPDF_Stream* GetIcon(const CFX_ByteString& csEntry) const;
 
   CPDF_Dictionary* const m_pDict;
 };
 
 #endif  // CORE_FPDFDOC_INCLUDE_FPDF_DOC_H_