chromium/extensions/test/data/manifest_tests/usb_printers_filters.json

{
  "name": "extensions_unittests --gtest_filter=UsbPrinterManifestTest.InvalidFilter",
  "version": "1",
  "manifest_version": 2,
  "app": {
    "background": {
      "scripts": ["background.js"]
    }
  },
  "usb_printers": {
    "filters": [
      { "vendorId": 1, "productId": 2 },
      {
        "vendorId": 1,
        "interfaceClass": 2,
        "interfaceSubclass": 3,
        "interfaceProtocol": 4
      }
    ]
  }
}