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

{
  "content_scripts": [{
    "js": [ "script1.js" ],
    "matches": [ "http://*.google.com/*", "https://*.google.com/*" ]
  }, {
    "js": [ "script2.js" ],
    "matches": [ "http://*.example.com/*" ]
  }],
  "description": "The first extension that I made.",
  "manifest_version": 2,
  "name": "My extension 1",
  "version": "1.0.0.0"
}