chromium/tools/android/customtabs_benchmark/scripts/sample_config.json

{
  "url": "https://www.android.com",
  "speculated_url": "https://www.android.com",
  "warmup": true,
  "skip_launcher_activity": false,
  "speculation_mode": "disabled",
  "delay_to_may_launch_url": -1,
  "delay_to_launch_url": 3000,
  "cold": true
}