I mainly work in browser and don't mind switching OS because when I spilled coffee on my mbp I transfered the data (photos!) to Google cloud to be OS independent. I bought a chromebook as a temporary solution.
OK, so you're really flexible in terms of hardware if your usage is mostly the browser, and cloud-based storage. In fact, is there a reason you don't want to make the Chromebook your permanent option? You already have it, it works for you.
If you are determined to go in for a new one, and given that you are platform agnostic, a Surface Pro is a reasonable option, as are any of the ultrabooks/convertibles from the big guys (HP, Dell, Lenovo, etc.). Since your Chromebook is keeping you going for now, you can take the time to shop around to find the one that fits your needs/budget the best. If you go in for a Windows laptop from a non-Microsoft source, bear in mind that they will often have additional software installed out of the box, and you might want to do a clean install (+ required hardware drivers) to get a good vanilla experience. And yes, this is where the "it just works" philosophy of Macs in general diverges from the hardware variety offered by Windows.
How careful/careless are you? Is this coffee spill scenario a once in a lifetime (i.e. yours, not your laptops!) occurrence, or are you generally careless, and can we expect more such spills?
If the latter, then a Chromebook is a good option, because you can hit the ground running easily with one.