bug#62800: [PATCH] eww: Use completion in URL/keyword prompt.

[Juri Linkov]

>> Emacs 29 has a new command 'minibuffer-complete-history'
>> that completes on the history.
>
> I don't understand. The patch adds the ability to use
> minibuffer-complete-history by pressing the TAB key while typing a
> URL. The behavior I'm seeing now (in version 29.0.50), is when I type in
> a URL and press tab, instead of completing, it inserts a tab
> character.

I just noted that this is already possible by typing less convenient key
'C-x up'.  But if you think 'TAB' could do the same, this is fine.
Maybe even eww-suggested-uris could be added to the list of history
completions as well.  Because browsers show completions not only for
previously visited urls from the history, but also for suggested urls.