The Google headquarters in Mountain View, California.Photographer: Benjamin Fanjoy/BloombergAlphabet Inc.’s Google must renegotiate any contract to make its search engine or artificial intelligence app the default for smartphones and other devices every year, a federal judge ruled. Judge Amit Mehta in Washington sided with the US Justice Department on the one year limitation in his final ruling on what changes the search giant must make in the wake of a landmark ruling that the company illegally...