Remove FX_BOOL from core

core/fxcrt/fx_basic_bstring.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 947 matching lines @@
 
 uint32_t CFX_ByteString::GetID(FX_STRSIZE start_pos) const {
   return AsStringC().GetID(start_pos);
 }
 FX_STRSIZE FX_ftoa(FX_FLOAT d, FX_CHAR* buf) {
   buf[0] = '0';
   buf[1] = '\0';
   if (d == 0.0f) {
     return 1;
   }
-  FX_BOOL bNegative = FALSE;
+  bool bNegative = false;
   if (d < 0) {
-    bNegative = TRUE;
+    bNegative = true;
     d = -d;
   }
   int scale = 1;
   int scaled = FXSYS_round(d);
   while (scaled < 100000) {
     if (scale == 1000000) {
       break;
     }
     scale *= 10;
     scaled = FXSYS_round(d * scale);
@@ skipping 22 matching lines @@
     fraction %= scale;
     scale /= 10;
   }
   return buf_size;
 }
 CFX_ByteString CFX_ByteString::FormatFloat(FX_FLOAT d, int precision) {
   FX_CHAR buf[32];
   FX_STRSIZE len = FX_ftoa(d, buf);
   return CFX_ByteString(buf, len);
 }