Enable NTP Inactivity 60 minute experiment in trial finch config.

testing/variations/fieldtrial_testing_config.json

Index: testing/variations/fieldtrial_testing_config.json
diff --git a/testing/variations/fieldtrial_testing_config.json b/testing/variations/fieldtrial_testing_config.json
index 3a92224c3e7689c599fc428ef767634feee2f8ff..81fb72a0de194b772f9ef1bb9a6df3d8976f8171 100644
--- a/testing/variations/fieldtrial_testing_config.json
+++ b/testing/variations/fieldtrial_testing_config.json
@@ -1377,6 +1377,24 @@
             ]
         }
     ],
+    "NTPLaunchAfterInactivity": [
+        {
+            "platforms": [
+                "android"
+            ],
+            "experiments": [
+                {
+                    "name": "OneHourDelay",
+                    "params": {
+                        "delay_in_mins": "60"
+                    },
+                    "enable_features": [
+                        "NTPLaunchAfterInactivity"
+                    ]
+                }
+            ]
+        }
+    ],
     "NTPPersonalizedSectionRanking": [
         {
             "platforms": [