Reason for revert:
This change appears to break ulpfec, with severe regressions, e.g., for webrtc_perf_test FullStackTest.ForemanCifPlr5Ulpfec
Original issue's description:
> Reland of Use RtxReceiveStream. (patchset #1 id:1 of https://codereview.webrtc.org/3010983002/ )
>
> Reason for revert:
> Intend to fix perf failures and reland.
>
> Original issue's description:
> > Revert of Use RtxReceiveStream. (patchset #5 id:80001 of https://codereview.webrtc.org/3008773002/ )
> >
> > Reason for revert:
> > A few perf tests broken, including
> >
> > RampUpTest.UpDownUpAbsSendTimeSimulcastRedRtx
> > RampUpTest.UpDownUpTransportSequenceNumberRtx
> > RampUpTest.UpDownUpTransportSequenceNumberPacketLoss
> >
> >
> > Original issue's description:
> > > Use RtxReceiveStream.
> > >
> > > This also has the beneficial side-effect that when a media stream
> > > which is protected by FlexFEC receives an RTX retransmission, the
> > > retransmitted media packet is passed into the FlexFEC machinery,
> > > which should improve its ability to recover packets via FEC.
> > >
> > > BUG=webrtc:7135
> > >
> > > Review-Url: https://codereview.webrtc.org/3008773002
> > > Cr-Commit-Position: refs/heads/master@{#19649}
> > > Committed: 5c0f6c62ea
> >
> > TBR=brandtr@webrtc.org,danilchap@webrtc.org,stefan@webrtc.org,magjed@webrtc.org
> > # Skipping CQ checks because original CL landed less than 1 days ago.
> > NOPRESUBMIT=true
> > NOTREECHECKS=true
> > NOTRY=true
> > BUG=webrtc:7135
> >
> > Review-Url: https://codereview.webrtc.org/3010983002
> > Cr-Commit-Position: refs/heads/master@{#19653}
> > Committed: 3c39c0137a
>
> TBR=brandtr@webrtc.org,danilchap@webrtc.org,stefan@webrtc.org,magjed@webrtc.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> BUG=webrtc:7135
>
> Review-Url: https://codereview.webrtc.org/3006063002
> Cr-Commit-Position: refs/heads/master@{#19715}
> Committed: 35713eaf56TBR=brandtr@webrtc.org,danilchap@webrtc.org,stefan@webrtc.org,magjed@webrtc.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=webrtc:7135
Review-Url: https://codereview.webrtc.org/3007303002
Cr-Commit-Position: refs/heads/master@{#19744}
8e7eee0351