Use Android callback API to obtain cellular signal strength

net/nqe/network_quality_estimator_params.cc

Index: net/nqe/network_quality_estimator_params.cc
diff --git a/net/nqe/network_quality_estimator_params.cc b/net/nqe/network_quality_estimator_params.cc
index 7fd4e11f3d82432a1290808f2aa16124cf9caf69..7db3f81b346658bc34cc7d87956e259dbe727d07 100644
--- a/net/nqe/network_quality_estimator_params.cc
+++ b/net/nqe/network_quality_estimator_params.cc
@@ -97,12 +97,12 @@ double GetWeightMultiplierPerSecond(
   return pow(0.5, 1.0 / half_life_seconds);
 }
 
-double GetWeightMultiplierPerDbm(
+double GetWeightMultiplierPerSignalStrengthLevel(
     const std::map<std::string, std::string>& variation_params) {
   // The default weight is set to 1.0, so by default, RSSI has no effect on the
   // observation's weight.
   return GetDoubleValueForVariationParamWithDefaultValue(
-      variation_params, "rssi_weight_per_dbm", 1.0);
+      variation_params, "rssi_weight_per_signal_strength_level", 1.0);
 }
 
 const char* GetNameForConnectionType(