[system_metrics] New metric: active_minutes

Bug: 45365

Change-Id: Ifa5ac85bf3216bc7cd45e698750f8670540b79ca
diff --git a/fuchsia/fuchsia_system_metrics/metrics.yaml b/fuchsia/fuchsia_system_metrics/metrics.yaml
index d3e3c78..528bda4 100644
--- a/fuchsia/fuchsia_system_metrics/metrics.yaml
+++ b/fuchsia/fuchsia_system_metrics/metrics.yaml
@@ -288,3 +288,22 @@
   meta_data:
     max_release_stage: GA
     expiration_date: "2020/12/17"
+
+################################################################################
+# Active Minutes
+#
+# Every 15 minutes we log the number of minutes that the device was "active"
+# during the previous 15 minutes period.
+################################################################################
+- id: 9
+  metric_name: active_minutes
+  metric_type: EVENT_COUNT
+  metric_dimensions:
+  reports:
+    - report_name: active_minutes_stats
+      id: 1
+      report_type: NUMERIC_AGGREGATION
+      system_profile_field: [PRODUCT_NAME, CHANNEL, SYSTEM_VERSION]
+  meta_data:
+    max_release_stage: GA
+    expiration_date: "2021/02/04"