Revert "Currently, base/timer.cc calls PostTask with FROM_HERE as the Location,

jingle/glue/pseudotcp_adapter.cc

Index: jingle/glue/pseudotcp_adapter.cc
diff --git a/jingle/glue/pseudotcp_adapter.cc b/jingle/glue/pseudotcp_adapter.cc
index e2b31300c86b61aaea7b2828164fb122fe38be81..a34ddd539389b447d65bb7889bde02b85bcf7fd3 100644
--- a/jingle/glue/pseudotcp_adapter.cc
+++ b/jingle/glue/pseudotcp_adapter.cc
@@ -369,8 +369,7 @@ void PseudoTcpAdapter::Core::AdjustClock() {
   long timeout = 0;
   if (pseudo_tcp_.GetNextClock(PseudoTcp::Now(), timeout)) {
     timer_.Stop();
-    timer_.Start(FROM_HERE,
-                 base::TimeDelta::FromMilliseconds(std::max(timeout, 0L)), this,
+    timer_.Start(base::TimeDelta::FromMilliseconds(std::max(timeout, 0L)), this,
                  &PseudoTcpAdapter::Core::HandleTcpClock);
   }
 }