Use MiniPublishForm if publish request is message_only
Use MiniPublishForm if publish request is message_only

Author: iannucci@chromium.org

Review: https://codereview.appspot.com/7225067/

nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra