Remove FX_BOOL from core

core/fxcodec/fx_codec.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_FXCODEC_FX_CODEC_H_
 #define CORE_FXCODEC_FX_CODEC_H_
 
 #include <map>
@@ skipping 99 matching lines @@
                        FX_FLOAT& R,
                        FX_FLOAT& G,
                        FX_FLOAT& B);
 void AdobeCMYK_to_sRGB1(uint8_t c,
                         uint8_t m,
                         uint8_t y,
                         uint8_t k,
                         uint8_t& R,
                         uint8_t& G,
                         uint8_t& B);
-FX_BOOL MD5ComputeID(const void* buf, uint32_t dwSize, uint8_t ID[16]);
+bool MD5ComputeID(const void* buf, uint32_t dwSize, uint8_t ID[16]);
 void FaxG4Decode(const uint8_t* src_buf,
                  uint32_t src_size,
                  int* pbitpos,
                  uint8_t* dest_buf,
                  int width,
                  int height,
                  int pitch);
 
 #endif  // CORE_FXCODEC_FX_CODEC_H_