Add support for Cast/DIAL messaging (fixes issue #2900)

Branch: magreenblatt/cef_public:cast

Branch: chromiumembedded/cef:master

Declined

#308 · Created 2020-03-26 · Last updated 2020-03-27

Declined pull request

Merged in master revison 03fd5b1.

Closed by: Marshall Greenblatt·2020-03-27

Chromium supports communication with media devices on the local network via the Cast and DIAL protocols. This takes two primary forms:

Messaging, where strings representing state information are passed between the client and a dedicated receiver app on the media device. The receiver app communicates directly with an app-specific backend service to retrieve and possibly control media playback.
Tab/desktop mirroring, where the media contents are streamed directly from the browser to a generic streaming app on the media device and playback is controlled by the browser.

CEF only supports messaging at this time with functionality exposed via the new CefMediaRouter interface.

To test: Navigate to http://tests/media_router in cefclient.