Zynga announced today that it is laying off 314 workers and it looks like the company is shutting down its Seattle office in the process. A company spokesperson wouldn't offer any specific details past what Zynga's press release noted, which was a 15-percent reduction in workforce that was a "global reduction impacting multiple locations." However, a source told GeekWire that Zynga's Seattle engineering outpost is closing, and a quick look at the social media stream indicates the same: Goodbye drinks with my Zynga Seattle brothers and sisters…