use base::Time constants in net module instead of using static constants

net/dns/mdns_client_impl.cc

Index: net/dns/mdns_client_impl.cc
diff --git a/net/dns/mdns_client_impl.cc b/net/dns/mdns_client_impl.cc
index 68cee7a87ec1572b395a964ec6b4de588fedb4b1..a4712e437af6d06ef8c93cbe88e9d4004584d1e3 100644
--- a/net/dns/mdns_client_impl.cc
+++ b/net/dns/mdns_client_impl.cc
@@ -32,8 +32,6 @@ const unsigned MDnsTransactionTimeoutSeconds = 3;
 // the original TTL.
 const double kListenerRefreshRatio1 = 0.85;
 const double kListenerRefreshRatio2 = 0.95;
-const unsigned kMillisecondsPerSecond = 1000;
-

[davidben, 2014/09/17 13:32:00]

Really nitpicky nit: I would leave the blank line since the one on line 27 is
still there.

 }  // namespace
 
 void MDnsSocketFactoryImpl::CreateSockets(
@@ -538,11 +536,11 @@ void MDnsListenerImpl::ScheduleNextRefresh() {
   // be canceled and rescheduled if the record's TTL is updated due to a
   // response being received.
   base::Time next_refresh1 = last_update_ + base::TimeDelta::FromMilliseconds(
-      static_cast<int>(kMillisecondsPerSecond *
+      static_cast<int>(base::Time::kMillisecondsPerSecond *
                        kListenerRefreshRatio1 * ttl_));
 
   base::Time next_refresh2 = last_update_ + base::TimeDelta::FromMilliseconds(
-      static_cast<int>(kMillisecondsPerSecond *
+      static_cast<int>(base::Time::kMillisecondsPerSecond *
                        kListenerRefreshRatio2 * ttl_));
 
   base::MessageLoop::current()->PostDelayedTask(