runtime/bin/vmservice/observatory/deployed/web/packages/polymer/src/js/polymer/bower.json

{
  "name": "polymer",
  "private": true,
  "dependencies": {
    "platform": "Polymer/platform#>=0.3.0 <1.0.0",
    "core-component-page": "Polymer/core-component-page#>=0.3.0 <1.0.0"
  }
}