[base] Use thread safe localtime_r() instead of localtime().

src/base/platform/platform-win32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Platform-specific code for Win32.
 
 // Secure API functions are not available using MinGW with msvcrt.dll
 // on Windows XP. Make sure MINGW_HAS_SECURE_API is not defined to
 // disable definition of secure API functions in standard headers that
 // would conflict with our own implementation.
@@ skipping 28 matching lines @@
 
 inline void MemoryBarrier() {
   int barrier = 0;
   __asm__ __volatile__("xchgl %%eax,%0 ":"=r" (barrier));
 }
 
 #endif  // __MINGW64_VERSION_MAJOR
 
 
 int localtime_s(tm* out_tm, const time_t* time) {
-  tm* posix_local_time_struct = localtime(time);  // NOLINT
+  tm* posix_local_time_struct = localtime_r(time, out_tm);
   if (posix_local_time_struct == NULL) return 1;
-  *out_tm = *posix_local_time_struct;
   return 0;
 }
 
 
 int fopen_s(FILE** pFile, const char* filename, const char* mode) {
   *pFile = fopen(filename, mode);
   return *pFile != NULL ? 0 : 1;
 }
 
 int _vsnprintf_s(char* buffer, size_t sizeOfBuffer, size_t count,
@@ skipping 1335 matching lines @@
 
 
 void Thread::SetThreadLocal(LocalStorageKey key, void* value) {
   BOOL result = TlsSetValue(static_cast<DWORD>(key), value);
   USE(result);
   DCHECK(result);
 }
 
 }  // namespace base
 }  // namespace v8