chromium/chrome/test/data/extensions/platform_apps/component/manifest.json

{
  // Key from minimal_platform_app.pem.
  "manifest_version": 2,
  // chrome-extension://jjeoclcdfjddkdjokiejckgcildcflpp
  "key": "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC+uU63MD6T82Ldq5wjrDFn5mGmPnnnjWZBWxYXfpG4kVf0s+p24VkXwTXsxeI12bRm8/ft9sOq0XiLfgQEh5JrVUZqvFlaZYoS+giZfUqzKFGMLa4uiSMDnvv+byxrqAepKz5G8XX/q5Wm5cvpdjwgiu9z9iM768xJy+Ca/G5qQwIDAQAB",
  "name": "Platform App Test: component platform app",
  "version": "2",
  "app": {
    "background": {
      "scripts": ["test.js"]
    }
  }
}