Jeremy Leconte 06e2148889 Deflake simulcast flow tests: prevent negative Timestamp exception.
These tests often fail in 'ExtrapolateLocalTime' because the result gives a negative Timestamp.

Here is the stack from https://chromium-swarm.appspot.com/task?id=6173230e67897b10:
PC: @     0x7f03afdb8e87  (unknown)  raise
    ...
    @     0x55f4a360ba71        352  webrtc::Timestamp::operator+()
    @     0x55f4a47ecaf3        160  webrtc::TimestampExtrapolator::ExtrapolateLocalTime()

Low-Coverage-Reason: coverage isn't that low.
Change-Id: If3e7cbf31d6c4800727b24352ed2c6edc425fc73
Bug: webrtc:15022
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/300600
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Commit-Queue: Jeremy Leconte <jleconte@google.com>
Cr-Commit-Position: refs/heads/main@{#39853}
2023-04-13 16:35:26 +00:00
..
2022-08-02 13:52:36 +00:00