to return time of the last receieved packet of a key frame rather than
last received first packet of a key frame.
To match VideoReceiveStream expectation and prevent requesting
a new key frame if a large key frame is currently on the way.
Bug: None
Change-Id: I443a60872a3580d324f050080a9868f7b90d71a2
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/161730
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30084}
c9e532a7eb