chromium/extensions/test/data/manifest_tests/page_action_manifest_version_2.json

{
  "manifest_version": 2,
  "name": "my extension",
  "version": "1.0.0.0",
  "description": "All these page action sub-features are removed in manifest version 2",
  "page_action": {
    "id": "id",
    "icons": [
      "pageAction.png"
    ],
    "name": "name",
    "popup": "popup.html"
  }
}