Revert of SSRC and RSID may only refer to one sink each in RtpDemuxer

Revert of SSRC and RSID may only refer to one sink each in RtpDemuxer (patchset #15 id:280001 of https://codereview.webrtc.org/2968693002/ )

Reason for revert:
Some internal tests keep failing after this change. Try to fix it by reverting it. Will reland it if this isn't the root cause.

Original issue's description:
> SSRC and RSID may only refer to one sink each in RtpDemuxer
> 
> RTP demuxing should only match RTP packets with one sink.
> 
> BUG=webrtc:7135
> 
> Review-Url: https://codereview.webrtc.org/2968693002
> Cr-Commit-Position: refs/heads/master@{#19233}
> Committed: https://chromium.googlesource.com/external/webrtc/+/7b7e06fd23ac67d81f378b773bb631abb1d82116

TBR=nisse@webrtc.org,danilchap@webrtc.org,perkj@webrtc.org,stefan@webrtc.org,holmer@google.com,deadbeef@webrtc.org,pthatcher@webrtc.org,steveanton@webrtc.org,eladalon@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/2993633002
Cr-Commit-Position: refs/heads/master@{#19239}
Committed: https://chromium.googlesource.com/external/webrtc/+/59b603fbed5b069090f9084c8eeb82eff7bca30c

[Zhi Huang, 2017-08-03 17:09:29]

The CQ bit was checked by zhihuang@webrtc.org

[Zhi Huang, 2017-08-03 17:09:30]

Created Revert of SSRC and RSID may only refer to one sink each in RtpDemuxer

[commit-bot: I haz the power, 2017-08-03 17:09:40]

CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2017-08-03 17:09:46]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1501780169874180, "parent_rev":
"7eaa62bc483d6b43fd33968b688f3202de87923f", "commit_rev":
"59b603fbed5b069090f9084c8eeb82eff7bca30c"}

[commit-bot: I haz the power, 2017-08-03 17:09:51]

Description was changed from

==========
Revert of SSRC and RSID may only refer to one sink each in RtpDemuxer (patchset
#15 id:280001 of https://codereview.webrtc.org/2968693002/ )

Reason for revert:
Some internal tests keep failing after this change. Try to fix it by reverting
it. Will reland it if this isn't the root cause.

Original issue's description:
> SSRC and RSID may only refer to one sink each in RtpDemuxer
> 
> RTP demuxing should only match RTP packets with one sink.
> 
> BUG=webrtc:7135
> 
> Review-Url: https://codereview.webrtc.org/2968693002
> Cr-Commit-Position: refs/heads/master@{#19233}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/7b7e06fd23ac67d81f378b773...

TBR=nisse@webrtc.org,danilchap@webrtc.org,perkj@webrtc.org,stefan@webrtc.org,...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7135
==========

to

==========
Revert of SSRC and RSID may only refer to one sink each in RtpDemuxer (patchset
#15 id:280001 of https://codereview.webrtc.org/2968693002/ )

Reason for revert:
Some internal tests keep failing after this change. Try to fix it by reverting
it. Will reland it if this isn't the root cause.

Original issue's description:
> SSRC and RSID may only refer to one sink each in RtpDemuxer
> 
> RTP demuxing should only match RTP packets with one sink.
> 
> BUG=webrtc:7135
> 
> Review-Url: https://codereview.webrtc.org/2968693002
> Cr-Commit-Position: refs/heads/master@{#19233}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/7b7e06fd23ac67d81f378b773...

TBR=nisse@webrtc.org,danilchap@webrtc.org,perkj@webrtc.org,stefan@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/2993633002
Cr-Commit-Position: refs/heads/master@{#19239}
Committed:
https://chromium.googlesource.com/external/webrtc/+/59b603fbed5b069090f9084c8...
==========

[commit-bot: I haz the power, 2017-08-03 17:09:52]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/59b603fbed5b069090f9084c8...

[eladalon, 2017-08-04 08:56:24]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.webrtc.org/2996493002/ by eladalon@webrtc.org.

The reason for reverting is: Relanding..

[eladalon, 2017-08-04 08:58:03]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.webrtc.org/2993053002/ by eladalon@webrtc.org.

The reason for reverting is: Relanding.