ref: 2e0841931c76e3433242fa9ea4c6b1d361b88371
parent: 9faa0296b820173c97884483d9890761291a1b0a
parent: 1c187c4be0cf0437dc924d811db0b4758e8fecec
author: Paul Wilkins <paulwilkins@google.com>
date: Mon Apr 18 14:47:13 EDT 2016
Merge "Adjustment to prediction decay."