The capture time stamp was not set when finalizing a simulation where
no frames were delivered, this triggered a DCHECK.
Also adding a unit test that would have caught this.
Bug: webrtc:10365
Change-Id: I839d1c01dbf260723ed30d3e846efff280d7744f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/136585
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Commit-Queue: Sebastian Jansson <srte@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27929}