chromium/components/policy/test/data/pref_mapping/ShelfAlignment.json

[
  {
    "os": [
      "chromeos_ash"
    ],
    "policy_pref_mapping_tests": [
      {
        "policies": {
          "ShelfAlignment": "Left"
        },
        "prefs": {
          "shelf_alignment_local": {
            "value": "Left"
          }
        }
      }
    ]
  }
]