Merge "Refactor optimize_b for speed performance"
authorJingning Han <jingning@google.com>
Mon, 20 Jun 2016 16:48:22 +0000 (16:48 +0000)
committerGerrit Code Review <noreply-gerritcodereview@google.com>
Mon, 20 Jun 2016 16:48:22 +0000 (16:48 +0000)

Trivial merge