NQE: Add net log event if the metric changes substantially

net/nqe/event_creator.h

Index: net/nqe/event_creator.h
diff --git a/net/nqe/event_creator.h b/net/nqe/event_creator.h
index 5000195a96d73c1ad5d76a122234cfc786d6bf4a..4cd87e68a6cf72f4cd805a6f0634ec668f25799d 100644
--- a/net/nqe/event_creator.h
+++ b/net/nqe/event_creator.h
@@ -30,11 +30,11 @@ class NET_EXPORT_PRIVATE EventCreator {
   ~EventCreator();
 
   // May add network quality changed event to the net-internals log if there
-  // is a change in the effective connection type, or if there is a change in
-  // the availability of HTTP RTT, transport RTT or bandwidth.
+  // is a change in the effective connection type, or if there is a meaningful
+  // change in the values of HTTP RTT, transport RTT or bandwidth.
   // |effective_connection_type| is the current effective connection type.
   // |network_quality| is the current network quality.
-  void MaybeAddEffectiveConnectionTypeChangedEventToNetLog(
+  void MaybeAddNetworkQualityChangedEventToNetLog(
       EffectiveConnectionType effective_connection_type,
       const NetworkQuality& network_quality);