Most restaurants will accomodate a toddler. Other diners will appreciate it if you remove your child if they can not sit still, try to visit other tables, or make loud noises.
I am the director of a child development center and have spent a lot of hours with toddlers. I personally wouldn't take a toddler to any of the signature dining restaurants (Artist Point, Yachtsman Steak House, Shulas, Flying Fish, Jiko, Cali Grill, Narcosees, Citricos, Brown Derby, etc). I would try to stick with more family friendly restaurants like Whispering Canyons, Prime Time 50s, any character meals, etc.