How would I quickly defrost chicken if it's going to be cooked in a crock pot? I've read that it is O.K. to defrost chicken via the microwave or in a sink of cold water, but only if you're planning to cook the chicken right away. (How to quickly and safely defrost chicken?)

I'm putting my chicken in a crock pot to cook it, would these methods still be safe, or is there another method to which I would go about this?

Thanks in advance for all suggestions! :)
Either microwave or the running water method should be perfectly acceptable, since you are going to begin cooking right away.  Modern slow cookers should come up to temperature within no more than an hour or so, so you aren't leaving the food at ambient temperature for very long.

Note that for the water method, the water should be running--it doesn't have to be fast, just a thin stream--but this makes sure there is enough circulation in the water to substantially reduce the defrosting time.

Your best, safest bet, if you have the time is always to defrost in the refrigerator.   The other methods are for when you don't have time to do that.