Change the string representation of Slow2G ECT

net/nqe/network_quality_estimator.cc

Index: net/nqe/network_quality_estimator.cc
diff --git a/net/nqe/network_quality_estimator.cc b/net/nqe/network_quality_estimator.cc
index cd3dc1c2c5b0e9d63456537d91e4014209c3b728..69c03be538c7d6808b91e4f1d5165dda9c856c7c 100644
--- a/net/nqe/network_quality_estimator.cc
+++ b/net/nqe/network_quality_estimator.cc
@@ -191,11 +191,12 @@ void RecordEffectiveConnectionTypeAccuracy(
     int32_t metric,
     base::TimeDelta measuring_duration,
     EffectiveConnectionType observed_effective_connection_type) {
-  const std::string histogram_name = base::StringPrintf(
-      "%s.EstimatedObservedDiff.%s.%d.%s", prefix,
-      metric >= 0 ? "Positive" : "Negative",
-      static_cast<int32_t>(measuring_duration.InSeconds()),
-      GetNameForEffectiveConnectionType(observed_effective_connection_type));
+  const std::string histogram_name =
+      base::StringPrintf("%s.EstimatedObservedDiff.%s.%d.%s", prefix,
+                         metric >= 0 ? "Positive" : "Negative",
+                         static_cast<int32_t>(measuring_duration.InSeconds()),
+                         DeprecatedGetNameForEffectiveConnectionType(
+                             observed_effective_connection_type));
 
   base::HistogramBase* histogram = base::Histogram::FactoryGet(
       histogram_name, 0, EFFECTIVE_CONNECTION_TYPE_LAST,