chrome/test/data/extensions/manifest_tests/init_valid_app_requirements.json

{
  "name": "Requirements Hosted App",
  "manifest_version": 2,
  "version": "0",
  "app": {
    "launch": {
      "web_url": "http://example.com"
    },
    "urls": [
      "http://*.example.com"
    ]
  },
  "requirements": {
    "3D": {
      "features": ["webgl"]
    }
  }
}