Remove FX_BOOL from xfa.

xfa/fxfa/parser/cscript_signaturepseudomodel.cpp

 // 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
 
 #include "xfa/fxfa/parser/cscript_signaturepseudomodel.h"
 
 #include "fxjs/cfxjse_arguments.h"
 #include "xfa/fxfa/app/xfa_ffnotify.h"
@@ skipping 26 matching lines @@
 
 void CScript_SignaturePseudoModel::Sign(CFXJSE_Arguments* pArguments) {
   int32_t iLength = pArguments->GetLength();
   if (iLength < 3 || iLength > 7) {
     ThrowException(XFA_IDS_INCORRECT_NUMBER_OF_METHOD, L"sign");
     return;
   }
 
   CFXJSE_Value* pValue = pArguments->GetReturnValue();
   if (pValue)
-    pValue->SetBoolean(FALSE);
+    pValue->SetBoolean(false);
 }
 
 void CScript_SignaturePseudoModel::Enumerate(CFXJSE_Arguments* pArguments) {
   if (pArguments->GetLength() != 0) {
     ThrowException(XFA_IDS_INCORRECT_NUMBER_OF_METHOD, L"enumerate");
     return;
   }
   return;
 }
 
 void CScript_SignaturePseudoModel::Clear(CFXJSE_Arguments* pArguments) {
   int32_t iLength = pArguments->GetLength();
   if (iLength < 1 || iLength > 2) {
     ThrowException(XFA_IDS_INCORRECT_NUMBER_OF_METHOD, L"clear");
     return;
   }
 
   CFXJSE_Value* pValue = pArguments->GetReturnValue();
   if (pValue)
-    pValue->SetBoolean(FALSE);
+    pValue->SetBoolean(false);
 }