Remove FX_BOOL from core

core/fpdfdoc/cpvt_wordrange.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_FPDFDOC_CPVT_WORDRANGE_H_
 #define CORE_FPDFDOC_CPVT_WORDRANGE_H_
 
 #include "core/fpdfdoc/cpvt_wordplace.h"
@@ skipping 20 matching lines @@
   void SetBeginPos(const CPVT_WordPlace& begin) {
     BeginPos = begin;
     SwapWordPlace();
   }
 
   void SetEndPos(const CPVT_WordPlace& end) {
     EndPos = end;
     SwapWordPlace();
   }
 
-  FX_BOOL IsExist() const { return BeginPos != EndPos; }
+  bool IsExist() const { return BeginPos != EndPos; }
 
-  FX_BOOL operator!=(const CPVT_WordRange& wr) const {
+  bool operator!=(const CPVT_WordRange& wr) const {
     return wr.BeginPos != BeginPos || wr.EndPos != EndPos;
   }
 
   void SwapWordPlace() {
     if (BeginPos.WordCmp(EndPos) > 0) {
       CPVT_WordPlace place = EndPos;
       EndPos = BeginPos;
       BeginPos = place;
     }
   }
 
   CPVT_WordPlace BeginPos;
   CPVT_WordPlace EndPos;
 };
 
 #endif  // CORE_FPDFDOC_CPVT_WORDRANGE_H_