Remove FX_BOOL from core/fpdfapi/font

core/fpdfapi/font/cpdf_fontencoding.h

 // Copyright 2016 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_FPDFAPI_FONT_CPDF_FONTENCODING_H_
 #define CORE_FPDFAPI_FONT_CPDF_FONTENCODING_H_
 
 #include "core/fxcrt/cfx_string_pool_template.h"
@@ skipping 23 matching lines @@
 
 class CPDF_Object;
 
 class CPDF_FontEncoding {
  public:
   CPDF_FontEncoding();
   explicit CPDF_FontEncoding(int PredefinedEncoding);
 
   void LoadEncoding(CPDF_Object* pEncoding);
 
-  FX_BOOL IsIdentical(CPDF_FontEncoding* pAnother) const;
+  bool IsIdentical(CPDF_FontEncoding* pAnother) const;
 
   FX_WCHAR UnicodeFromCharCode(uint8_t charcode) const {
     return m_Unicodes[charcode];
   }
   int CharCodeFromUnicode(FX_WCHAR unicode) const;
 
   void SetUnicode(uint8_t charcode, FX_WCHAR unicode) {
     m_Unicodes[charcode] = unicode;
   }
 
   CPDF_Object* Realize(CFX_WeakPtr<CFX_ByteStringPool> pPool);
 
  public:
   FX_WCHAR m_Unicodes[256];
 };
 
 #endif  // CORE_FPDFAPI_FONT_CPDF_FONTENCODING_H_