Before - popcorn texture with no central fixture (beautiful 80's track lighting though)

With most of the popcorn texture gone, we noticed a suspicious looking patch in the center of the ceiling.

As hoped, it turned out to be the original electrical box for the central fixture. The whole thing was just filled with plaster, including the wires.

Once the plaster was gone, I had to figure out how to get power back to the fixture. My hope was that the mystery switch that did nothing near our front door was the answer.
This is the inside of the mystery switch. I found that the disconnected black and white rubber/cloth wiring in the lower left of the picture below led to the ceiling box. Incidentally, I still have no idea what the red wire in this box does. I was able to reconnect the old wires and found that they did go to the ceiling box and that it had power! I still find it bizarre that someone would plaster over a central electrical box in their living room, but I guess I find the track lighting pretty strange too. I am looking forward to putting the fixture up. It is the one on the left in the picture below. We got really lucky and found it on craigslist. It exactly matches the original dining room fixture. If anyone is looking for similar polychrome fixtures, this website has a great selection, though they aren't cheap. 
