MOLSON COORS CANADA INC. (Toronto symbols TPX.A and TPX.B; www.molsoncoors.com) has completed its $3.4-billion purchase of StarBev LP, which owns nine breweries in Central and Eastern Europe (all amounts except share prices in U.S. dollars). In the three months ended June 30, 2012, this acquisition contributed $19.7 million to Molson Coors’s pre-tax earnings. That helped push …