CFX_ArabicChar contains only static methods, no need to instantiate.

core/fxcrt/include/fx_arabic.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_FXCRT_INCLUDE_FX_ARABIC_H_
 #define CORE_FXCRT_INCLUDE_FX_ARABIC_H_
 
 #include "core/fxcrt/include/fx_arb.h"
 
 #define FX_BIDIMAXLEVEL 61
 #define FX_BidiDirection(a) (FX_IsOdd(a) ? FX_BIDICLASS_R : FX_BIDICLASS_L)
 #define FX_BidiGetDeferredType(a) (((a) >> 4) & 0x0F)
 #define FX_BidiGetResolvedType(a) ((a)&0x0F)
 
-class CFX_ArabicChar {
- public:
-  void Release() { delete this; }
+namespace pdfium {
+namespace arabic {
 
-  FX_BOOL IsArabicChar(FX_WCHAR wch) const;
-  FX_BOOL IsArabicFormChar(FX_WCHAR wch) const;
+bool IsArabicChar(FX_WCHAR wch);
+bool IsArabicFormChar(FX_WCHAR wch);
+FX_WCHAR GetFormChar(FX_WCHAR wch, FX_WCHAR prev = 0, FX_WCHAR next = 0);
+FX_WCHAR GetFormChar(const CFX_Char* cur,
+                     const CFX_Char* prev,
+                     const CFX_Char* next);
 
-  FX_WCHAR GetFormChar(FX_WCHAR wch,
-                       FX_WCHAR prev = 0,
-                       FX_WCHAR next = 0) const;
-  FX_WCHAR GetFormChar(const CFX_Char* cur,
-                       const CFX_Char* prev,
-                       const CFX_Char* next) const;
-
- protected:
-  const FX_ARBFORMTABLE* ParseChar(const CFX_Char* pTC,
-                                   FX_WCHAR& wChar,
-                                   FX_CHARTYPE& eType) const;
-};
+}  // namespace arabic
+}  // namespace pdfium
 
 void FX_BidiReverseString(CFX_WideString& wsText,
                           int32_t iStart,
                           int32_t iCount);
 void FX_BidiSetDeferredRun(CFX_Int32Array& values,
                            int32_t iStart,
                            int32_t iCount,
                            int32_t iValue);
 void FX_BidiClassify(const CFX_WideString& wsText,
                      CFX_Int32Array& classes,
@@ skipping 140 matching lines @@
 int32_t FX_BidiReorderLevel(int32_t iBaseLevel,
                             CFX_WideString& wsText,
                             const CFX_Int32Array& levels,
                             int32_t iStart,
                             FX_BOOL bReverse = FALSE);
 void FX_BidiReorder(int32_t iBaseLevel,
                     CFX_WideString& wsText,
                     const CFX_Int32Array& levels);
 
 #endif  // CORE_FXCRT_INCLUDE_FX_ARABIC_H_