You're in luck, Andreas has been hacking on that since a couple of months. They're calling the Linux version of the browser Ladybird: https://github.com/awesomekling/ladybird
I'm trying to figure out if the Ladybird version tracks the SerenityOS version: https://github.com/SerenityOS/serenity/tree/master/Userland/...
The GH page also has "Experimental Android Build Steps"