chrome/common/extensions/docs/examples/api/downloads/download_filename_controller/manifest.json

{"name": "Download Filename Controller",
 "description": "Download Filename Controller",
 "version": "0.1",
 "background": {"scripts": ["bg.js"], "persistent": false},
 "options_page": "options.html",
 "permissions": ["downloads"],
 "content_security_policy": "script-src 'self' chrome-extension-resource: 'unsafe-eval'; default-src 'self'",
 "manifest_version": 2}