Rebase the original CL and update capture/replay state
serialization

Original CL reviewed-on:
https://chromium-review.googlesource.com/c/angle/angle/+/2169093

Bug: angleproject:4394
Bug: chromium:1085996
Bug: chromium:1086582
Bug: chromium:1086585
Bug: chromium:1086586
Change-Id: If0fba8b6e185540aed57d22eaf0ff79ec142209e
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2404442
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>