chrome/test/data/devtools/extensions/simple_content_script/manifest.json

{
   "content_scripts": [ {
      "js": [ "simple_content_script.js" ],
      "matches": [ "http://*/*" ]
   } ],
   "description": "Simple content script.",
   "name": "Simple content script",
   "version": "0.1",
   "manifest_version": 2
}