Change to calculate the real NTP in TimeTicks.

base/time/time.h

Index: base/time/time.h
diff --git a/base/time/time.h b/base/time/time.h
index 112c14eab51604a3602fd2beadc18cabe66a5f1d..5c2cf6e26abd8667a03246b6fd038b586071f1a5 100644
--- a/base/time/time.h
+++ b/base/time/time.h
@@ -604,6 +604,14 @@ class BASE_EXPORT TimeTicks {
     return TimeTicks(ticks);
   }
 
+  // Get the TimeTick value at the time of the UnixEpoch. This is useful when
+  // you need to relate the value of TimeTicks to a real time and date.
+  // Note: Upon first invocation, this function takes a snapshot of the realtime
+  // clock to establish a reference point.  This function will return the same
+  // value for the duration of the application, but will be different in future
+  // application runs.
+  static TimeTicks UnixEpoch();
+
   // Returns the internal numeric value of the TimeTicks object.
   // For serializing, use FromInternalValue to reconstitute.
   int64 ToInternalValue() const {