Remove FX_BOOL from core

core/fxcrt/fx_basic_wstring.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 <stddef.h>
 
 #include <algorithm>
 #include <cctype>
@@ skipping 934 matching lines @@
 }
 
 void CFX_WideString::TrimLeft() {
   TrimLeft(L"\x09\x0a\x0b\x0c\x0d\x20");
 }
 FX_FLOAT FX_wtof(const FX_WCHAR* str, int len) {
   if (len == 0) {
     return 0.0;
   }
   int cc = 0;
-  FX_BOOL bNegative = FALSE;
+  bool bNegative = false;
   if (str[0] == '+') {
     cc++;
   } else if (str[0] == '-') {
-    bNegative = TRUE;
+    bNegative = true;
     cc++;
   }
   int integer = 0;
   while (cc < len) {
     if (str[cc] == '.') {
       break;
     }
     integer = integer * 10 + FXSYS_toDecimalDigit(str[cc]);
     cc++;
   }
@@ skipping 45 matching lines @@
       FXSYS_MultiByteToWideChar(codepage, 0, bstr.c_str(), src_len, nullptr, 0);
   CFX_WideString wstr;
   if (dest_len) {
     FX_WCHAR* dest_buf = wstr.GetBuffer(dest_len);
     FXSYS_MultiByteToWideChar(codepage, 0, bstr.c_str(), src_len, dest_buf,
                               dest_len);
     wstr.ReleaseBuffer(dest_len);
   }
   return wstr;
 }