For years, Hugo Barra was one of the most visible executives at Google. 
He was a product manager for its Android team. Every year at Google's 
biggest conference, Google I/O, Barra would show off Android's latest 
new features for the whole world. Then, in August of this year, Barra 
quit Google to work for a Chinese company. In December, he gave a talk in Paris about how utterly blown away he's been by that place.
-Business Insider