--- a/ipc/chromium/src/base/time_posix.cc
+++ b/ipc/chromium/src/base/time_posix.cc
@@ -159,17 +159,17 @@ TimeTicks TimeTicks::Now() {
   // to microseconds up front to stave off overflows.
   absolute_micro = mach_absolute_time() / Time::kNanosecondsPerMicrosecond *
                    timebase_info.numer / timebase_info.denom;
 
   // Don't bother with the rollover handling that the Windows version does.
   // With numer and denom = 1 (the expected case), the 64-bit absolute time
   // reported in nanoseconds is enough to last nearly 585 years.
 
-#elif defined(OS_POSIX) && \
+#elif defined(__OpenBSD__) || defined(OS_POSIX) && \
       defined(_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
 
   struct timespec ts;
   if (clock_gettime(CLOCK_MONOTONIC, &ts) != 0) {
     NOTREACHED() << "clock_gettime(CLOCK_MONOTONIC) failed.";
     return TimeTicks();
   }