Make WPT coverage analysis visible for Googlers and Chromium users (do not merge yet)

[DanielRyanSmith]

This will allow us to get some feedback on this feature without initially making it visible to non-Googlers.

[DanielRyanSmith]

I think it's best to not land this change until December, when I can babysit things a little more. 🙂

[jrobbins]

This code looks good. But, I'll hold off approving it for now because I agree with your plan to wait until December.

[jrobbins]

Did you mean to have this merging into your other branch instead of main?

[DanielRyanSmith]

Did you mean to have this merging into your other branch instead of main?

These changes are built off of other changes that haven't yet landed, so updating the merge target makes it so the PR view is isolated to only changes in this PR (for hopefully easier review) 🙂

Once the other PRs get merged in, the merge target here will change to main as it should

[DanielRyanSmith]

Looking at the number of Googlers are on the roadmap page for m145 using their Chromium accounts, I'm wondering if it would be a better choice to make this available to Chromium email accounts as well. We have items in place to avoid overuse here (e.g. the 30 minute cooldown to regenerate the report, etc.). It might increase the velocity of feedback we get for this new feature 🤔

Edit: It is probably best to address #5922 before doing this.

[DanielRyanSmith]

This should be okay to review and land. Some polishing PRs are in flight, but will also be deployed at the same time.

[DanielRyanSmith]

(This needs Playwright snapshots update, which are being generated now)