Remove FX_BOOL from fpdfsdk.

fpdfsdk/pdfsdk_fieldaction.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 FPDFSDK_PDFSDK_FIELDACTION_H_
 #define FPDFSDK_PDFSDK_FIELDACTION_H_
 
 #include "core/fxcrt/fx_string.h"
 
 #ifdef PDF_ENABLE_XFA
 typedef enum {
   PDFSDK_XFA_Click = 0,
   PDFSDK_XFA_Full,
   PDFSDK_XFA_PreOpen,
   PDFSDK_XFA_PostOpen
 } PDFSDK_XFAAActionType;
 #endif  // PDF_ENABLE_XFA
 
 struct PDFSDK_FieldAction {
   PDFSDK_FieldAction();
   PDFSDK_FieldAction(const PDFSDK_FieldAction& other) = delete;
 
-  FX_BOOL bModifier;
-  FX_BOOL bShift;
+  bool bModifier;
+  bool bShift;
   int nCommitKey;
   CFX_WideString sChange;
   CFX_WideString sChangeEx;
-  FX_BOOL bKeyDown;
+  bool bKeyDown;
   int nSelEnd;
   int nSelStart;
   CFX_WideString sValue;
-  FX_BOOL bWillCommit;
-  FX_BOOL bFieldFull;
-  FX_BOOL bRC;
+  bool bWillCommit;
+  bool bFieldFull;
+  bool bRC;
 };
 
 #endif  // FPDFSDK_PDFSDK_FIELDACTION_H_