FX_BOOL considered harmful.

core/include/fdrm/fx_crypt.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_INCLUDE_FDRM_FX_CRYPT_H_
 #define CORE_INCLUDE_FDRM_FX_CRYPT_H_
 
 #include "../fxcrt/fx_system.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 void CRYPT_ArcFourCryptBlock(uint8_t* data, FX_DWORD size, const uint8_t* key, FX_DWORD keylen);
 void CRYPT_ArcFourSetup(void* context, const uint8_t* key, FX_DWORD length);
 void CRYPT_ArcFourCrypt(void* context, uint8_t* data, FX_DWORD size);
-void CRYPT_AESSetKey(void* context, FX_DWORD blocklen, const uint8_t* key, FX_DWORD keylen, FX_BOOL bEncrypt);
+void CRYPT_AESSetKey(void* context, FX_DWORD blocklen, const uint8_t* key, FX_DWORD keylen, bool bEncrypt);
 void CRYPT_AESSetIV(void* context, const uint8_t* iv);
 void CRYPT_AESDecrypt(void* context, uint8_t* dest, const uint8_t* src, FX_DWORD size);
 void CRYPT_AESEncrypt(void* context, uint8_t* dest, const uint8_t* src, FX_DWORD size);
 void CRYPT_MD5Generate(const uint8_t* data, FX_DWORD size, uint8_t digest[16]);
 void CRYPT_MD5Start(void* context);
 void CRYPT_MD5Update(void* context, const uint8_t* data, FX_DWORD size);
 void CRYPT_MD5Finish(void* context, uint8_t digest[16]);
 void CRYPT_SHA1Generate(const uint8_t* data, FX_DWORD size, uint8_t digest[20]);
 void CRYPT_SHA1Start(void* context);
 void CRYPT_SHA1Update(void* context, const uint8_t* data, FX_DWORD size);
 void CRYPT_SHA1Finish(void* context, uint8_t digest[20]);
 void CRYPT_SHA256Generate(const uint8_t* data, FX_DWORD size, uint8_t digest[32]);
 void CRYPT_SHA256Start(void* context);
 void CRYPT_SHA256Update(void* context, const uint8_t* data, FX_DWORD size);
 void CRYPT_SHA256Finish(void* context, uint8_t digest[32]);
 void CRYPT_SHA384Start(void* context);
 void CRYPT_SHA384Update(void* context, const uint8_t* data, FX_DWORD size);
 void CRYPT_SHA384Finish(void* context, uint8_t digest[48]);
 void CRYPT_SHA384Generate(const uint8_t* data, FX_DWORD size, uint8_t digest[48]);
 void CRYPT_SHA512Start(void* context);
 void CRYPT_SHA512Update(void* context, const uint8_t* data, FX_DWORD size);
 void CRYPT_SHA512Finish(void* context, uint8_t digest[64]);
 void CRYPT_SHA512Generate(const uint8_t* data, FX_DWORD size, uint8_t digest[64]);
-void CRYPT_SetPubKeyDecryptor(FX_BOOL (*func)(const uint8_t* pData, FX_DWORD size, uint8_t* data_buf, FX_DWORD& data_len));
+void CRYPT_SetPubKeyDecryptor(bool (*func)(const uint8_t* pData, FX_DWORD size, uint8_t* data_buf, FX_DWORD& data_len));
 
 #ifdef __cplusplus
 };
 #endif
 
 #endif  // CORE_INCLUDE_FDRM_FX_CRYPT_H_