Remove FX_BOOL from core

core/fxcrt/fxcrt_windows.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 "core/fxcrt/fxcrt_windows.h"
 
 #include "core/fxcrt/fx_string.h"
 
@@ skipping 32 matching lines @@
 
 CFXCRT_FileAccess_Win64::CFXCRT_FileAccess_Win64() : m_hFile(nullptr) {}
 
 CFXCRT_FileAccess_Win64::~CFXCRT_FileAccess_Win64() {
   Close();
 }
 
 bool CFXCRT_FileAccess_Win64::Open(const CFX_ByteStringC& fileName,
                                    uint32_t dwMode) {
   if (m_hFile)
-    return FALSE;
+    return false;
 
   uint32_t dwAccess, dwShare, dwCreation;
   FXCRT_Windows_GetFileMode(dwMode, dwAccess, dwShare, dwCreation);
   m_hFile = ::CreateFileA(fileName.c_str(), dwAccess, dwShare, nullptr,
                           dwCreation, FILE_ATTRIBUTE_NORMAL, nullptr);
   if (m_hFile == INVALID_HANDLE_VALUE)
     m_hFile = nullptr;
 
   return !!m_hFile;
 }
 
 bool CFXCRT_FileAccess_Win64::Open(const CFX_WideStringC& fileName,
                                    uint32_t dwMode) {
   if (m_hFile)
-    return FALSE;
+    return false;
 
   uint32_t dwAccess, dwShare, dwCreation;
   FXCRT_Windows_GetFileMode(dwMode, dwAccess, dwShare, dwCreation);
   m_hFile = ::CreateFileW((LPCWSTR)fileName.c_str(), dwAccess, dwShare, nullptr,
                           dwCreation, FILE_ATTRIBUTE_NORMAL, nullptr);
   if (m_hFile == INVALID_HANDLE_VALUE)
     m_hFile = nullptr;
 
   return !!m_hFile;
 }
@@ skipping 100 matching lines @@
   return !!::FlushFileBuffers(m_hFile);
 }
 
 bool CFXCRT_FileAccess_Win64::Truncate(FX_FILESIZE szFile) {
   if (SetPosition(szFile) == (FX_FILESIZE)-1)
     return false;
 
   return !!::SetEndOfFile(m_hFile);
 }
 #endif