[🚀 Feature]: Support Webdriver commands for FedCM

[cbiesinger]

Feature and motivation

Expose these Webdriver commands in Selenium:
https://fedidcg.github.io/FedCM/#automation

I have a draft PR at #12087 (comment)

Usage example

This lets identity providers and relying parties use Selenium's Java API to control
the FedCM browser dialog to test that their website works correctly when
using the FedCM API.

[github-actions]

@cbiesinger, thank you for creating this issue. We will troubleshoot it as soon as we can.

---

Info for maintainers

Triage this issue by using labels.

If information is missing, add a helpful comment and then I-issue-template label.

If the issue is a question, add the I-question label.

If the issue is valid but there is no time to troubleshoot it, consider adding the help wanted label.

If the issue requires changes or fixes from an external project (e.g., ChromeDriver, GeckoDriver, MSEdgeDriver, W3C), add the applicable G-* label, and it will provide the correct link and auto-close the issue.

After troubleshooting the issue, please add the R-awaiting answer label.

Thank you!

[cbiesinger]

(note that these commands are already supported in Chromedriver v115)

[titusfortner]

Looks like this has been implemented in Java, so we just need to add it for the other bindings.

[github-actions]

This issue is looking for contributors.

Please comment below or reach out to us through our IRC/Slack/Matrix channels if you are interested.

[aguspe]

Hi, if it's okay and help is still wanted I will start working on this for the RB selenium binding, I will publish my PR during the weekend

[aguspe]

I started working on this for the Ruby client, I'm just trying to read through the docs and adapt the java implementation to start with

[aguspe]

Hello the ruby implementation #13796 is up for review :)

[aguspe]

Hello @p0deje should we remove the label rb for this? The ruby implementation was merged on this pr #13796, and I was just looking for rb related things to help out and this popped up again since I filtered based on rb

[navin772]

Please remove the C-py label as the python changes have landed in #14710