Remove FX_BOOL from xfa.

xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.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 XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_
 #define XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_
 
 #include "core/fxcrt/fx_basic.h"
 
 class CBC_ReedSolomonGF256;
 
 class CBC_ReedSolomonGF256Poly final {
  public:
   CBC_ReedSolomonGF256Poly(CBC_ReedSolomonGF256* field, int32_t coefficients);
   CBC_ReedSolomonGF256Poly();
   ~CBC_ReedSolomonGF256Poly();
   void Init(CBC_ReedSolomonGF256* field,
             CFX_Int32Array* coefficients,
             int32_t& e);
 
   int32_t GetCoefficients(int32_t degree);
   CFX_Int32Array* GetCoefficients();
   int32_t GetDegree();
-  FX_BOOL IsZero();
+  bool IsZero();
   int32_t EvaluateAt(int32_t a);
   CBC_ReedSolomonGF256Poly* AddOrSubtract(CBC_ReedSolomonGF256Poly* other,
                                           int32_t& e);
   CBC_ReedSolomonGF256Poly* Multiply(CBC_ReedSolomonGF256Poly* other,
                                      int32_t& e);
   CBC_ReedSolomonGF256Poly* Multiply(int32_t scalar, int32_t& e);
   CBC_ReedSolomonGF256Poly* MultiplyByMonomial(int32_t degree,
                                                int32_t coefficient,
                                                int32_t& e);
   CFX_ArrayTemplate<CBC_ReedSolomonGF256Poly*>* Divide(
       CBC_ReedSolomonGF256Poly* other,
       int32_t& e);
 
   CBC_ReedSolomonGF256Poly* Clone(int32_t& e);
 
  private:
   CBC_ReedSolomonGF256* m_field;
   CFX_Int32Array m_coefficients;
 };
 
 #endif  // XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_