[webkit-dev] Request for position: Capture Handle Identity

This is a request for WebKit's position on introducing an API that allows captured Web-applications to declare their identity to a would-be capturing Web-application. Links: * Explainer: https://github.com/WICG/capture-handle/blob/main/README.md * Spec: https://wicg.github.io/capture-handle/ * ChromeStatus entry: https://chromestatus.com/feature/4854125411958784