Windows: Fix CefCookieVisitor crash on invalid date (fixes issue #2927)

libcef/common/time_impl.cc

@@ -20,6 +20,16 @@ void cef_time_to_basetime(const cef_time_t& cef_time, base::Time& time) {
 }
 
 void cef_time_from_basetime(const base::Time& time, cef_time_t& cef_time) {
+#if defined(OS_WIN)
+  int64_t t = time.ToDeltaSinceWindowsEpoch().InMicroseconds();
+  // From MSDN, FILETIME "Contains a 64-bit value representing the number of
+  // 100-nanosecond intervals since January 1, 1601 (UTC)." This value must
+  // be less than 0x8000000000000000. Otherwise, the function
+  // FileTimeToSystemTime fails.
+  if (t < 0 || static_cast<uint64_t>(t * 10) >= 0x8000000000000000)
+    return;
+#endif
+
   base::Time::Exploded exploded;
   time.UTCExplode(&exploded);
   cef_time.year = exploded.year;