[
  {
    "os": [
      "chromeos"
    ],
    "simple_policy_pref_mapping_test": {
      "pref_name": "document_scan.document_scan_api_trusted_extensions",
      "default_value": [],
      "values_to_test": [
        [
          "abcdefghijklmnopabcdefghijklmnop"
        ]
      ]
    }
  }
]