Most consumers didn’t realize it from the almost surreptitious announcement, but one of California’s main wine producers got a huge boost a few weeks ago when Fetzer, the iconic Mendocino County wine company, was sold to a Chilean few Americans know much about. Concha y Toro, a large, 28 million-case winery in Chile with operations in Argentina as well, paid an estimated $240 million to acquire from Brown Forman of Kentucky the 3.2 million-case Fetzer and its affiliated brands.