Fix the params for NetworkQualityEstimator field trial

testing/variations/fieldtrial_testing_config_win.json

 {
     "AutofillClassifier": [
         {
             "group_name": "Enabled"
         }
     ],
     "AutofillFieldMetadata": [
         {
             "group_name": "Enabled"
         }
@@ skipping 160 matching lines @@
                 "3G.DefaultMedianRTTMsec": "297",
                 "4G.DefaultMedianKbps": "1756",
                 "4G.DefaultMedianRTTMsec": "159",
                 "Bluetooth.DefaultMedianKbps": "449",
                 "Bluetooth.DefaultMedianRTTMsec": "135",
                 "Ethernet.DefaultMedianKbps": "3263",
                 "Ethernet.DefaultMedianRTTMsec": "106",
                 "HalfLifeSeconds": "60",
                 "None.DefaultMedianKbps": "567",
                 "None.DefaultMedianRTTMsec": "272",
+                "Slow2G.ThresholdMedianHttpRTTMsec": "2000",
                 "Unknown.DefaultMedianKbps": "1916",
                 "Unknown.DefaultMedianRTTMsec": "121",
                 "WiFi.DefaultMedianKbps": "2736",
-                "WiFi.DefaultMedianRTTMsec": "168"
+                "WiFi.DefaultMedianRTTMsec": "168",
+                "correlation_logging_probability": "0.001"
             }
         }
     ],
     "NetworkTimeQueries": [
         {
             "enable_features": [
                 "NetworkTimeServiceQuerying"
             ],
             "group_name": "NetworkTimeQueriesEnabled"
         }
@@ skipping 299 matching lines @@
     ],
     "use-new-media-cache": [
         {
             "enable_features": [
                 "use-new-media-cache"
             ],
             "group_name": "Enabled"
         }
     ]
 }