(Re-upload of https://codereview.webrtc.org/3020493002/) Bug: webrtc:4690, webrtc:7306 Change-Id: I67fb9ebca1296aabc08eae8a292a5c69832dc35e Reviewed-on: https://webrtc-review.googlesource.com/5360 Commit-Queue: Fredrik Solenberg <solenberg@webrtc.org> Reviewed-by: Henrik Andreassson <henrika@webrtc.org> Cr-Commit-Position: refs/heads/master@{#20083}