Khosrowshahi's bet comes at a critical time for the San Francisco-based business. Regulators in London said last month they will revoke Uber's license to operate there, citing safety concerns. This month, Uber published a first-of-its-kind safety report detailing more than 3,000 allegations of sexual assault filed with the company last year, raising further concerns about the dangers of the platform. And starting next month, a law designed to reclassify gig economy workers as employees goes into effect in Uber's home state of California. Uber is bracing for a lengthy battle in court and at ballot boxes next year.