Import Cobalt 21.master.0.267507

Includes the following patches:
  https://cobalt-review.googlesource.com/c/cobalt/+/5630
    by devin.cai@mediatek.com
  https://cobalt-review.googlesource.com/c/cobalt/+/5710
    by p.mirgos@samsung.com
  https://cobalt-review.googlesource.com/c/cobalt/+/5730
    by lizhi.fan@samsung.com