chrome/test/data/extensions/omnibox/manifest.json

{
  "name": "Extension omnibox keyword and short name test ",
  "short_name": "short name",
  "version": "0.1",
  "manifest_version": 2,
  "description": "Tests that when the omnibox keyword is triggered, the location icon view text is the extension's short name.",
  "background": {
    "scripts": ["background.js"]
  },
  "omnibox": { "keyword": "key" }
}