A Napa Valley wine giant has issued a dire warning about the direction of the industry, pointing to “ongoing category pressures.” Constellation Brands , the New York-based owner of California’s Robert Mondavi Winery, expects the high-end wine market to decline as its CEO Bill Newlands steps away from the company. Chief Financial Officer Garth Hankinson pointed to “ongoing category pressures, channel headwinds, the timing of our cost of leveraging and distributor inventory rebalancing” as