Flour is a hot component of names-that-didn’t-become-names these days. First there was Logan Square’s Flour and Bones, which became Fat Rice before it even opened. Flour & Water didn’t fare as well: it opened in September, then changed its name in October after a San Francisco restaurant of the same name issued a legal notice. The Lakeview restaurant became Bistro Dre in honor of its chef, Andre Christopher, whose resumé includes Japonais, Pops for Champagne, and Little Bucharest Bistro. He’s probably best known for his 2009 stint at the the now-closed Grocery Bistro, when much was made first of his being a vegetarian and then of his parents’ boycott of the restaurant after the owners allegedly failed to pay him (Christopher’s parents are still around, running the front of the house here).