Allow coordination between sites using Page Embedded Permissions Controls and concurrent experiments with the camera and microphone permissions UI in Chrome.
This is not a traditional deprecation trial as we are not changing Web-facing behavior. Instead we are using a reverse origin trial to coordinate a Chrome launch with the launch of Page Embedded Permissions controls. This origin trial will exclude sites from the launch of Media Previews. Design Doc for Media Previews: https://docs.google.com/document/d/1ZnX2JROjr9l4y2_OPMpfVlLOo-A5cQzD4mWarj9kXQ0/edit Excerpts from the above document: Chrome will provide real-time previews of camera and microphone input at the time camera and microphone permissions are requested by websites. These will also be available from the site’s pageinfo. In addition, users with multiple devices will be able to select a camera and microphone at the time permissions are requested, unless the site has requested a specific device through getUserMedia(). This feature is in concurrent development with another permissions-related project, Page-Embedded Permissions Controls. Users will be exposed to PEPC under an independent launch process involving a separate origin trial and/or site-specific experiments. To allow the media previews and PEPC launches to proceed in parallel without exposing users to multiple experimental conditions, we will be providing a reverse origin trial to allow sites that plan to adopt PEPC to opt out of media previews.
Docs: https://docs.google.com/document/d/1ZnX2JROjr9l4y2_OPMpfVlLOo-A5cQzD4mWarj9kXQ0/edit