Manual Roll Open Screen from c493f7233e12 to bffb5c2247c5 (5 revisions)

https://chromium.googlesource.com/openscreen.git/+log/c493f7233e12..bffb5c2247c5

2021-07-14 abrahamcd@google.com Define virtual destructors in Client interfaces.
2021-07-14 kennangumbs@google.com Remove abseil dependency from HexEncode method
2021-07-14 kennangumbs@google.com Remove default implementation of GetLocalEndpoint
2021-07-14 tikuta@chromium.org infra/config: remove unnecessary properties
2021-07-14 abrahamcd@google.com Add a new constant for AV1 codec.

This patch also includes build fixes to the cast_streaming component.
Currently, the cast streaming component assumes, incorrectly, that the
codecs provided by open screen will not change. This patch rectifies
this by adding a default case for openscreen::cast:: enum definitions,
which will result in a NOTREACHED() instead of a compilation error.

Bug: chromium:1224266
Change-Id: I8267d2153697ff7667e2589b4fe1d6a62ed28ad7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3024702
Reviewed-by: Ryan Keane <rwkeane@google.com>
Reviewed-by: Jordan Bayles <jophba@chromium.org>
Commit-Queue: Jordan Bayles <jophba@chromium.org>
Cr-Commit-Position: refs/heads/master@{#901650}