Flamboyant New York restaurateur Warner LeRoy, 65, died of complications of lymphoma on Friday. With his passing he left behind such Manhattan landmarks as Tavern on the Green and the Russian Tea Room. LeRoy’s eateries — his first show-stopping restaurant was Maxwell’s Plum, in the 1960s — combined generally so-so food with razzle-dazzle décor. He came by the gaudiness naturally: His father was Hollywood producer Mervyn LeRoy (“The Wizard of Oz”), while his mother, Doris, was the daughter of studio mogul Jack Warner.