STOCKTON — While some might say it gave away too many steak fries, Stockton’s Red Robin hamburger restaurant that closed Friday was the victim of an urgent turnaround effort to reverse the falling fortunes of its parent company.“The Stockton Red Robin location was underperforming and, as a result, the company made the difficult decision to permanently close this location,” Kevin Caulfield, spokesman for Red Robin Gourmet Burgers Inc.