[EasyUnlock] Fix crash when the same user pod is refocused.

components/proximity_auth/proximity_monitor_impl.cc

Index: components/proximity_auth/proximity_monitor_impl.cc
diff --git a/components/proximity_auth/proximity_monitor_impl.cc b/components/proximity_auth/proximity_monitor_impl.cc
index 22bedf43eb816f15e66009457e7a66afa588b5cc..90821074e40f43a5aa958df48a34c6f76eaf77b9 100644
--- a/components/proximity_auth/proximity_monitor_impl.cc
+++ b/components/proximity_auth/proximity_monitor_impl.cc
@@ -192,9 +192,8 @@ void ProximityMonitorImpl::CheckForProximityStateChange() {
   bool is_now_in_proximity =
       rssi_rolling_average_ && *rssi_rolling_average_ > kRssiThreshold;
 
-  if (rssi_rolling_average_) {
-    LOG(WARNING) << "RSSI: " << *rssi_rolling_average_;
-  }
+  if (rssi_rolling_average_)
+    PA_LOG(INFO) << "  Rolling RSSI: " << *rssi_rolling_average_;

[Ryan Hansberry, 2017/05/09 02:51:43]

nit: Why the indententation?

[Tim Song, 2017/05/10 18:11:16]

For me, at least, it makes it stand out/easier to ignore in the logs, as this
can be quite spammy.

[Ryan Hansberry, 2017/05/15 15:48:05]

If this is a particularly spammy log, then is INFO the correct granularity?

[Tim Song, 2017/05/15 18:30:48]

It's not spammy in the global sense as this is only logged when the remote
device is connected and authenticated. However, it is a bit spammy when I try to
debug what's going on. I think this is the correct level.

 
   if (remote_device_is_in_proximity_ != is_now_in_proximity) {
     PA_LOG(INFO) << "[Proximity] Updated proximity state: "