Enable dom.fullscreen.keyboard_lock.enabled by default.

https://hg.mozilla.org/mozilla-central/rev/023857ab8530

https://hg.mozilla.org/mozilla-central/rev/023857ab8530

Could you consider nominating this for a release note? (Process info)

Release Note Request (optional, but appreciated)
[Why is this notable]: Enables the new Fullscreen Keyboard Lock API on all channels
[Affects Firefox for Android]: No, the API is disabled on Android
[Suggested wording]: The new Fullscreen Keyboard Lock API adds an optional argument to requestFullscreen that allows websites to request that while fullscreen, pressing the Escape key will no longer exit fullscreen (instead a long-press is required), and certain formerly-reserved browser hotkeys are allowed to be default-prevented.
[Links (documentation, blog post, etc)]: https://github.com/whatwg/fullscreen/pull/232

Thanks, added to the Fx151 nightly release notes, please allow 30 minutes for the site to update.
Keeping the relnote-firefox flag as ? to keep it on the radar for inclusion in the final Fx151 release notes.

FF151 MDN work for this can be tracked in https://github.com/mdn/content/issues/43868

This is essentially done - waiting on browser compatibility data and docs reviews to go through.
Note that at least a little more work will likely be required when the spec merges to update the compatibility data, and possibly the docs, depending on how it changes.

How are they related to this one? They don't use keyboard lock?