Paul Hallak 95f1e5192c Do not attempt setting the absolute capture time extension if we don't
get a timestamp.

Also, use -1 to signify an unset timestamp. This is what other callers
do: https://source.chromium.org/chromium/chromium/src/+/main:third_party/webrtc/modules/audio_coding/acm2/audio_coding_module.cc;l=306;drc=bbe4aed2302dc763935496b80a5cefb6a42d912d

No-Try because of lack of infra lack of capacity on macs.

No-Try: True
Bug: webrtc:11327
Change-Id: Ide0c0633579b6b2be3eea9912b13f858760de0ad
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/219781
Commit-Queue: Paul Hallak <phallak@google.com>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34074}
2021-05-21 10:55:15 +00:00
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