Reverted commit D3737160
Reverted commit D3737160

Summary: Previously this was un-namespaced, which wasn't great.

Reviewed By: mzlee

Differential Revision: D3737160

fbshipit-source-id: df62976e33dce00b6f95ba11793b415e2bb08fbb

facebook/wangle,facebook/wangle,facebook/wangle