tree dc3febc2b7bb3599f3ba77f397b901ab88f6356c
parent 112ee48c3c50a8bc309cf2904f15f93853829235
author Qiuhan Ding <dingqiuhan@gmail.com> 1420772859 -0800
committer Yingdi Yu <yuyingdi@gmail.com> 1427237944 -0700

discovery: Add hierarchical model for chatroom invitation

Change-Id: I19e74745a5998fe075a373357df542fef317ae5f