Remove FX_BOOL from xfa.

xfa/fde/cfx_wordbreak.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_FDE_CFX_WORDBREAK_H_
 #define XFA_FDE_CFX_WORDBREAK_H_
 
 #include <memory>
 
 #include "core/fxcrt/fx_string.h"
 #include "core/fxcrt/fx_system.h"
 
 class IFX_CharIter;
 
 class CFX_WordBreak {
  public:
   CFX_WordBreak();
   ~CFX_WordBreak();
 
   void Attach(IFX_CharIter* pIter);
   void Attach(const CFX_WideString& wsText);
-  FX_BOOL Next(FX_BOOL bPrev);
+  bool Next(bool bPrev);
   void SetAt(int32_t nIndex);
   int32_t GetWordPos() const;
   int32_t GetWordLength() const;
   void GetWord(CFX_WideString& wsWord) const;
-  FX_BOOL IsEOF(FX_BOOL bTail) const;
+  bool IsEOF(bool bTail) const;
 
  protected:
-  FX_BOOL FindNextBreakPos(IFX_CharIter* pIter,
-                           FX_BOOL bPrev,
-                           FX_BOOL bFromNext = TRUE);
+  bool FindNextBreakPos(IFX_CharIter* pIter, bool bPrev, bool bFromNext = true);
 
  private:
   std::unique_ptr<IFX_CharIter> m_pPreIter;
   std::unique_ptr<IFX_CharIter> m_pCurIter;
 };
 
 #endif  // XFA_FDE_CFX_WORDBREAK_H_