chromium/chrome/test/data/extensions/api_test/keybinding/update/v1/manifest.json

{
  "name": "A browser action simply for updating",
  "version": "1.0",
  "manifest_version": 2,
  "background": {
    "scripts": ["background.js"]
  },
  "permissions": ["activeTab"],
  "browser_action": {
    "default_title": "Make this page red"
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Alt+Shift+F"
      }
    }
  }
}