Remove NULL in xfa/

xfa/fgas/localization/fgas_datetime.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/include/fx_system.h"
 #include "xfa/fgas/localization/fgas_datetime.h"
 
 #if _FX_OS_ == _FX_LINUX_DESKTOP_ || _FX_OS_ == _FX_ANDROID_ || \
@@ skipping 124 matching lines @@
 };
 
 void CFX_Unitime::Now() {
   FXUT_SYSTEMTIME utLocal;
 #if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN32_MOBILE_ || \
     _FX_OS_ == _FX_WIN64_
   ::GetLocalTime((LPSYSTEMTIME)&utLocal);
 #elif _FX_OS_ != _FX_EMBEDDED_
 #if 1
   timeval curTime;
-  gettimeofday(&curTime, NULL);
+  gettimeofday(&curTime, nullptr);
 #else
   struct timespec curTime;
   clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &curTime);
 #endif
   struct tm st;
   localtime_r(&curTime.tv_sec, &st);
   utLocal.wYear = st.tm_year + 1900;
   utLocal.wMonth = st.tm_mon + 1;
   utLocal.wDayOfWeek = st.tm_wday;
   utLocal.wDay = st.tm_mday;
   utLocal.wHour = st.tm_hour;
   utLocal.wMinute = st.tm_min;
   utLocal.wSecond = st.tm_sec;
   utLocal.wMilliseconds = curTime.tv_usec / 1000;
 #endif
   Set(utLocal.wYear, (uint8_t)utLocal.wMonth, (uint8_t)utLocal.wDay,
       (uint8_t)utLocal.wHour, (uint8_t)utLocal.wMinute,
       (uint8_t)utLocal.wSecond, (uint16_t)utLocal.wMilliseconds);
 }
 void CFX_Unitime::SetGMTime() {
   FXUT_SYSTEMTIME utLocal;
 #if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN32_MOBILE_ || \
     _FX_OS_ == _FX_WIN64_
   ::GetSystemTime((LPSYSTEMTIME)&utLocal);
 #elif _FX_OS_ != _FX_EMBEDDED_
 #if 1
   timeval curTime;
-  gettimeofday(&curTime, NULL);
+  gettimeofday(&curTime, nullptr);
 #else
   struct timespec curTime;
   clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &curTime);
 #endif
   struct tm st;
   gmtime_r(&curTime.tv_sec, &st);
   utLocal.wYear = st.tm_year + 1900;
   utLocal.wMonth = st.tm_mon + 1;
   utLocal.wDayOfWeek = st.tm_wday;
   utLocal.wDay = st.tm_mday;
@@ skipping 357 matching lines @@
   iMilliseconds %= g_FXMillisecondsPerSecond;
   if (iMilliseconds < 0) {
     iSeconds--, iMilliseconds += g_FXMillisecondsPerSecond;
   }
   m_DateTime.Time.sTime.millisecond = (uint16_t)iMilliseconds;
   if (iSeconds != 0) {
     AddSeconds(iSeconds);
   }
   return TRUE;
 }