ref: 153d70ca9bb8ea4f49e2f3b3cb43ed9906aa8a81
parent: 93ec31dff684b3f287792fc9b58147ae7ee3ec3f
parent: 5d28b63687a07189134cee7135423d04775e6cdc
author: Dmitry Kovalev <dkovalev@google.com>
date: Thu Oct 24 06:07:51 EDT 2013
Merge "Cleaning up {above, left}_block_mode functions."