Reland of New method I420Buffer::SetToBlack.

Reland of New method I420Buffer::SetToBlack. (patchset #1 id:1 of https://codereview.webrtc.org/2049023002/ )

Reason for revert:
Plan to reland with InitToBlack kept, to be able to update Chrome to use the new I420Buffer::SetToBlack method.

Original issue's description:
> Revert of New static method I420Buffer::SetToBlack. (patchset #4 id:60001 of https://codereview.webrtc.org/2029273004/ )
>
> Reason for revert:
> Breaks chrome, in particular, the tests in
>
> media_stream_remote_video_source_unittest.cc
>
> use the InitToBlack method which is being deleted.
>
> Original issue's description:
> > New static method I420Buffer::SetToBlack.
> >
> > Replaces cricket::VideoFrame::SetToBlack and
> > cricket::WebRtcVideoFrame::InitToBlack, which are deleted.
> >
> > Refactors the black frame logic in VideoBroadcaster, and a few of the
> > tests.
> >
> > BUG=webrtc:5682
> >
> > Committed: https://crrev.com/663f9e2ddc86e813f6db04ba2cf5ac1ed9e7ef67
> > Cr-Commit-Position: refs/heads/master@{#13063}
>
> TBR=perkj@webrtc.org,pbos@webrtc.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=webrtc:5682
>
> Committed: https://crrev.com/271d74078894bb24f454eb31b77e4ce38097a2fa
> Cr-Commit-Position: refs/heads/master@{#13065}

TBR=perkj@webrtc.org,pbos@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5682
Committed: https://crrev.com/efec5902a519b6b79dac138ec5c5ce063222cb4e
Cr-Commit-Position: refs/heads/master@{#13083}

[nisse-webrtc, 2016-06-08 13:52:58]

Created Reland of New static method I420Buffer::SetToBlack.

[pbos-webrtc, 2016-06-08 14:52:21]

rs-lgtm

[nisse-webrtc, 2016-06-09 07:21:06]

Description was changed from

==========
Reland of New static method I420Buffer::SetToBlack. (patchset #1 id:1 of
https://codereview.webrtc.org/2049023002/ )

Reason for revert:
Plan to reland with InitToBlack kept, to be able to update Chrome to use the new
I420Buffer::SetToBlack method.

Original issue's description:
> Revert of New static method I420Buffer::SetToBlack. (patchset #4 id:60001 of
https://codereview.webrtc.org/2029273004/ )
> 
> Reason for revert:
> Breaks chrome, in particular, the tests in
> 
> media_stream_remote_video_source_unittest.cc
> 
> use the InitToBlack method which is being deleted.
> 
> Original issue's description:
> > New static method I420Buffer::SetToBlack.
> >
> > Replaces cricket::VideoFrame::SetToBlack and
> > cricket::WebRtcVideoFrame::InitToBlack, which are deleted.
> >
> > Refactors the black frame logic in VideoBroadcaster, and a few of the
> > tests.
> >
> > BUG=webrtc:5682
> >
> > Committed: https://crrev.com/663f9e2ddc86e813f6db04ba2cf5ac1ed9e7ef67
> > Cr-Commit-Position: refs/heads/master@{#13063}
> 
> TBR=perkj@webrtc.org,pbos@webrtc.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=webrtc:5682
> 
> Committed: https://crrev.com/271d74078894bb24f454eb31b77e4ce38097a2fa
> Cr-Commit-Position: refs/heads/master@{#13065}

TBR=perkj@webrtc.org,pbos@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5682
==========

to

==========
Reland of New method I420Buffer::SetToBlack. (patchset #1 id:1 of
https://codereview.webrtc.org/2049023002/ )

Reason for revert:
Plan to reland with InitToBlack kept, to be able to update Chrome to use the new
I420Buffer::SetToBlack method.

Original issue's description:
> Revert of New static method I420Buffer::SetToBlack. (patchset #4 id:60001 of
https://codereview.webrtc.org/2029273004/ )
> 
> Reason for revert:
> Breaks chrome, in particular, the tests in
> 
> media_stream_remote_video_source_unittest.cc
> 
> use the InitToBlack method which is being deleted.
> 
> Original issue's description:
> > New static method I420Buffer::SetToBlack.
> >
> > Replaces cricket::VideoFrame::SetToBlack and
> > cricket::WebRtcVideoFrame::InitToBlack, which are deleted.
> >
> > Refactors the black frame logic in VideoBroadcaster, and a few of the
> > tests.
> >
> > BUG=webrtc:5682
> >
> > Committed: https://crrev.com/663f9e2ddc86e813f6db04ba2cf5ac1ed9e7ef67
> > Cr-Commit-Position: refs/heads/master@{#13063}
> 
> TBR=perkj@webrtc.org,pbos@webrtc.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=webrtc:5682
> 
> Committed: https://crrev.com/271d74078894bb24f454eb31b77e4ce38097a2fa
> Cr-Commit-Position: refs/heads/master@{#13065}

TBR=perkj@webrtc.org,pbos@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5682
==========

[nisse-webrtc, 2016-06-09 07:31:26]

The CQ bit was checked by nisse@webrtc.org

[nisse-webrtc, 2016-06-09 07:31:27]

The patchset sent to the CQ was uploaded after l-g-t-m from pbos@webrtc.org
Link to the patchset: https://codereview.webrtc.org/2049513005/#ps240001 (title:
"Keep (but deprecate) InitToBlack method.")

[commit-bot: I haz the power, 2016-06-09 07:31:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2049513005/240001

[commit-bot: I haz the power, 2016-06-09 07:31:43]

Description was changed from

==========
Reland of New method I420Buffer::SetToBlack. (patchset #1 id:1 of
https://codereview.webrtc.org/2049023002/ )

Reason for revert:
Plan to reland with InitToBlack kept, to be able to update Chrome to use the new
I420Buffer::SetToBlack method.

Original issue's description:
> Revert of New static method I420Buffer::SetToBlack. (patchset #4 id:60001 of
https://codereview.webrtc.org/2029273004/ )
> 
> Reason for revert:
> Breaks chrome, in particular, the tests in
> 
> media_stream_remote_video_source_unittest.cc
> 
> use the InitToBlack method which is being deleted.
> 
> Original issue's description:
> > New static method I420Buffer::SetToBlack.
> >
> > Replaces cricket::VideoFrame::SetToBlack and
> > cricket::WebRtcVideoFrame::InitToBlack, which are deleted.
> >
> > Refactors the black frame logic in VideoBroadcaster, and a few of the
> > tests.
> >
> > BUG=webrtc:5682
> >
> > Committed: https://crrev.com/663f9e2ddc86e813f6db04ba2cf5ac1ed9e7ef67
> > Cr-Commit-Position: refs/heads/master@{#13063}
> 
> TBR=perkj@webrtc.org,pbos@webrtc.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=webrtc:5682
> 
> Committed: https://crrev.com/271d74078894bb24f454eb31b77e4ce38097a2fa
> Cr-Commit-Position: refs/heads/master@{#13065}

TBR=perkj@webrtc.org,pbos@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5682
==========

to

==========
Reland of New method I420Buffer::SetToBlack. (patchset #1 id:1 of
https://codereview.webrtc.org/2049023002/ )

Reason for revert:
Plan to reland with InitToBlack kept, to be able to update Chrome to use the new
I420Buffer::SetToBlack method.

Original issue's description:
> Revert of New static method I420Buffer::SetToBlack. (patchset #4 id:60001 of
https://codereview.webrtc.org/2029273004/ )
> 
> Reason for revert:
> Breaks chrome, in particular, the tests in
> 
> media_stream_remote_video_source_unittest.cc
> 
> use the InitToBlack method which is being deleted.
> 
> Original issue's description:
> > New static method I420Buffer::SetToBlack.
> >
> > Replaces cricket::VideoFrame::SetToBlack and
> > cricket::WebRtcVideoFrame::InitToBlack, which are deleted.
> >
> > Refactors the black frame logic in VideoBroadcaster, and a few of the
> > tests.
> >
> > BUG=webrtc:5682
> >
> > Committed: https://crrev.com/663f9e2ddc86e813f6db04ba2cf5ac1ed9e7ef67
> > Cr-Commit-Position: refs/heads/master@{#13063}
> 
> TBR=perkj@webrtc.org,pbos@webrtc.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=webrtc:5682
> 
> Committed: https://crrev.com/271d74078894bb24f454eb31b77e4ce38097a2fa
> Cr-Commit-Position: refs/heads/master@{#13065}

TBR=perkj@webrtc.org,pbos@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5682
==========

[commit-bot: I haz the power, 2016-06-09 07:31:43]

Committed patchset #2 (id:240001)

[commit-bot: I haz the power, 2016-06-09 07:31:49]

Description was changed from

==========
Reland of New method I420Buffer::SetToBlack. (patchset #1 id:1 of
https://codereview.webrtc.org/2049023002/ )

Reason for revert:
Plan to reland with InitToBlack kept, to be able to update Chrome to use the new
I420Buffer::SetToBlack method.

Original issue's description:
> Revert of New static method I420Buffer::SetToBlack. (patchset #4 id:60001 of
https://codereview.webrtc.org/2029273004/ )
> 
> Reason for revert:
> Breaks chrome, in particular, the tests in
> 
> media_stream_remote_video_source_unittest.cc
> 
> use the InitToBlack method which is being deleted.
> 
> Original issue's description:
> > New static method I420Buffer::SetToBlack.
> >
> > Replaces cricket::VideoFrame::SetToBlack and
> > cricket::WebRtcVideoFrame::InitToBlack, which are deleted.
> >
> > Refactors the black frame logic in VideoBroadcaster, and a few of the
> > tests.
> >
> > BUG=webrtc:5682
> >
> > Committed: https://crrev.com/663f9e2ddc86e813f6db04ba2cf5ac1ed9e7ef67
> > Cr-Commit-Position: refs/heads/master@{#13063}
> 
> TBR=perkj@webrtc.org,pbos@webrtc.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=webrtc:5682
> 
> Committed: https://crrev.com/271d74078894bb24f454eb31b77e4ce38097a2fa
> Cr-Commit-Position: refs/heads/master@{#13065}

TBR=perkj@webrtc.org,pbos@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5682
==========

to

==========
Reland of New method I420Buffer::SetToBlack. (patchset #1 id:1 of
https://codereview.webrtc.org/2049023002/ )

Reason for revert:
Plan to reland with InitToBlack kept, to be able to update Chrome to use the new
I420Buffer::SetToBlack method.

Original issue's description:
> Revert of New static method I420Buffer::SetToBlack. (patchset #4 id:60001 of
https://codereview.webrtc.org/2029273004/ )
>
> Reason for revert:
> Breaks chrome, in particular, the tests in
>
> media_stream_remote_video_source_unittest.cc
>
> use the InitToBlack method which is being deleted.
>
> Original issue's description:
> > New static method I420Buffer::SetToBlack.
> >
> > Replaces cricket::VideoFrame::SetToBlack and
> > cricket::WebRtcVideoFrame::InitToBlack, which are deleted.
> >
> > Refactors the black frame logic in VideoBroadcaster, and a few of the
> > tests.
> >
> > BUG=webrtc:5682
> >
> > Committed: https://crrev.com/663f9e2ddc86e813f6db04ba2cf5ac1ed9e7ef67
> > Cr-Commit-Position: refs/heads/master@{#13063}
>
> TBR=perkj@webrtc.org,pbos@webrtc.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=webrtc:5682
>
> Committed: https://crrev.com/271d74078894bb24f454eb31b77e4ce38097a2fa
> Cr-Commit-Position: refs/heads/master@{#13065}

TBR=perkj@webrtc.org,pbos@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5682

Committed: https://crrev.com/efec5902a519b6b79dac138ec5c5ce063222cb4e
Cr-Commit-Position: refs/heads/master@{#13083}
==========

[commit-bot: I haz the power, 2016-06-09 07:31:50]

Patchset 2 (id:??) landed as
https://crrev.com/efec5902a519b6b79dac138ec5c5ce063222cb4e
Cr-Commit-Position: refs/heads/master@{#13083}