Merge to 60: Avoid toggling default receive streams in WebRtcVideoChannel2.

Merge to 60: Avoid toggling default receive streams in WebRtcVideoChannel2.

This CL removes |default_recv_ssrc_| from DefaultUnsignalledSsrcHandler
and replaces it with calls to a new member function
WebRtcVideoChannel2::GetDefaultReceiveStreamSsrc. The latter checks
the |default_stream_| member on the
WebRtcVideoChannel2::WebRtcVideoReceiveStreams to know which stream
is the current default stream.

This change removes duplicate state and fixes an issue where
incoming unsignaled SSRCs would compete for being the default
receive stream.

BUG=webrtc:7725, chromium:731679
TBR=sprang@webrtc.org, deadbeef@webrtc.org
NOTRY=True
NOPRESUBMIT=True

Review-Url (original): https://codereview.webrtc.org/2906893002
Cr-Commit-Position (original): refs/heads/master@{#18314}

Review-Url: https://codereview.webrtc.org/2943343002
Cr-Commit-Position: refs/branch-heads/60@{#3}
Cr-Branched-From: c61bf947b4ac31f3500858ffcae6fee39d799930-refs/heads/master@{#18252}
Committed: https://chromium.googlesource.com/external/webrtc/+/9692b879044aadbee4430d2ebf69c3e61d34f40a

[brandtr, 2017-06-19 14:28:19]

Description was changed from

==========
Merge to 60: Avoid toggling default receive streams in WebRtcVideoChannel2.

This CL removes |default_recv_ssrc_| from DefaultUnsignalledSsrcHandler
and replaces it with calls to a new member function
WebRtcVideoChannel2::GetDefaultReceiveStreamSsrc. The latter checks
the |default_stream_| member on the
WebRtcVideoChannel2::WebRtcVideoReceiveStreams to know which stream
is the current default stream.

This change removes duplicate state and fixes an issue where
incoming unsignaled SSRCs would compete for being the default
receive stream.

BUG=webrtc:7725, chromium:731679
NOTRY=True
NOPRESUBMIT=True

Review-Url (original): https://codereview.webrtc.org/2906893002
Cr-Commit-Position (original): refs/heads/master@{#18314}
==========

to

==========
Merge to 60: Avoid toggling default receive streams in WebRtcVideoChannel2.

This CL removes |default_recv_ssrc_| from DefaultUnsignalledSsrcHandler
and replaces it with calls to a new member function
WebRtcVideoChannel2::GetDefaultReceiveStreamSsrc. The latter checks
the |default_stream_| member on the
WebRtcVideoChannel2::WebRtcVideoReceiveStreams to know which stream
is the current default stream.

This change removes duplicate state and fixes an issue where
incoming unsignaled SSRCs would compete for being the default
receive stream.

BUG=webrtc:7725, chromium:731679
TBR=sprang@webrtc.org, deadbeef@webrtc.org
NOTRY=True
NOPRESUBMIT=True

Review-Url (original): https://codereview.webrtc.org/2906893002
Cr-Commit-Position (original): refs/heads/master@{#18314}
==========

[brandtr, 2017-06-20 07:26:15]

The CQ bit was checked by brandtr@webrtc.org

[commit-bot: I haz the power, 2017-06-20 07:26:24]

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, 2017-06-20 07:26:27]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1497943575566320, "parent_rev":
"21a9dac46342c3f505871a1de0e1ce0f16bad066", "commit_rev":
"9692b879044aadbee4430d2ebf69c3e61d34f40a"}

[commit-bot: I haz the power, 2017-06-20 07:26:31]

Description was changed from

==========
Merge to 60: Avoid toggling default receive streams in WebRtcVideoChannel2.

This CL removes |default_recv_ssrc_| from DefaultUnsignalledSsrcHandler
and replaces it with calls to a new member function
WebRtcVideoChannel2::GetDefaultReceiveStreamSsrc. The latter checks
the |default_stream_| member on the
WebRtcVideoChannel2::WebRtcVideoReceiveStreams to know which stream
is the current default stream.

This change removes duplicate state and fixes an issue where
incoming unsignaled SSRCs would compete for being the default
receive stream.

BUG=webrtc:7725, chromium:731679
TBR=sprang@webrtc.org, deadbeef@webrtc.org
NOTRY=True
NOPRESUBMIT=True

Review-Url (original): https://codereview.webrtc.org/2906893002
Cr-Commit-Position (original): refs/heads/master@{#18314}
==========

to

==========
Merge to 60: Avoid toggling default receive streams in WebRtcVideoChannel2.

This CL removes |default_recv_ssrc_| from DefaultUnsignalledSsrcHandler
and replaces it with calls to a new member function
WebRtcVideoChannel2::GetDefaultReceiveStreamSsrc. The latter checks
the |default_stream_| member on the
WebRtcVideoChannel2::WebRtcVideoReceiveStreams to know which stream
is the current default stream.

This change removes duplicate state and fixes an issue where
incoming unsignaled SSRCs would compete for being the default
receive stream.

BUG=webrtc:7725, chromium:731679
TBR=sprang@webrtc.org, deadbeef@webrtc.org
NOTRY=True
NOPRESUBMIT=True

Review-Url (original): https://codereview.webrtc.org/2906893002
Cr-Commit-Position (original): refs/heads/master@{#18314}

Review-Url: https://codereview.webrtc.org/2943343002
Cr-Commit-Position: refs/branch-heads/60@{#3}
Cr-Branched-From:
c61bf947b4ac31f3500858ffcae6fee39d799930-refs/heads/master@{#18252}
Committed:
https://chromium.googlesource.com/external/webrtc/+/9692b879044aadbee4430d2eb...
==========

[commit-bot: I haz the power, 2017-06-20 07:26:31]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/9692b879044aadbee4430d2eb...