[system_metrics] New metric: active_minutes

Bug: 45365

Change-Id: Ifa5ac85bf3216bc7cd45e698750f8670540b79ca
1 file changed
tree: 4bd268be3c9521bd37b589a88c879ff5426dd46d
  1. cobalt_internal/
  2. fuchsia/
  3. .gitignore
  4. BUILD.gn
  5. check.py
  6. OWNERS
  7. projects.yaml