Remove FX_BOOL from xfa.

xfa/fde/cfde_txtedtdorecord_deleterange.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 XFA_FDE_CFDE_TXTEDTDORECORD_DELETERANGE_H_
 #define XFA_FDE_CFDE_TXTEDTDORECORD_DELETERANGE_H_
 
 #include "core/fxcrt/fx_string.h"
 #include "core/fxcrt/fx_system.h"
 #include "xfa/fde/ifde_txtedtdorecord.h"
 
 class CFDE_TxtEdtEngine;
 
 class CFDE_TxtEdtDoRecord_DeleteRange : public IFDE_TxtEdtDoRecord {
  public:
   CFDE_TxtEdtDoRecord_DeleteRange(CFDE_TxtEdtEngine* pEngine,
                                   int32_t nIndex,
                                   int32_t nCaret,
                                   const CFX_WideString& wsRange,
-                                  FX_BOOL bSel = FALSE);
+                                  bool bSel = false);
   ~CFDE_TxtEdtDoRecord_DeleteRange() override;
 
-  FX_BOOL Undo() const override;
-  FX_BOOL Redo() const override;
+  bool Undo() const override;
+  bool Redo() const override;
 
  private:
   CFDE_TxtEdtEngine* m_pEngine;
-  FX_BOOL m_bSel;
+  bool m_bSel;
   int32_t m_nIndex;
   int32_t m_nCaret;
   CFX_WideString m_wsRange;
 };
 
 #endif  // XFA_FDE_CFDE_TXTEDTDORECORD_DELETERANGE_H_