(Reuters) – Shares of Chinese outdoor digital advertising company VisionChina Media Inc jumped 52 percent after the company said it signed a deal to promote Baidu Incs online gaming unit in China. VisionChina said it would be the exclusive digital mobile television advertising partner for Baidu Games and provide brand promotion in buses and subways in 2014. Baidu Games is an online gaming platform where users can play games provided by third-party developers.