Port fef047a4

Original commit message:
`This CL implements the following design doc:
https://docs.google.com/document/d/1h5kdfemMQMpUd15PSKW1lqikJW5hsGwrmOvoqhGFRts/edit?ts=5b978756#heading=h.urs7r34mx9p `

Change-Id: Ib34a2e18c56bc7ccf3cbfa0f1baa07dcc8ed0cd4
Reviewed-on: https://chromium-review.googlesource.com/1235974Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Sreten Kovacevic <skovacevic@wavecomp.com>
Cr-Commit-Position: refs/heads/master@{#56097}