Revert of New static method I420Buffer::SetToBlack.

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}

[nisse-webrtc, 2016-06-08 12:20:46]

The CQ bit was checked by nisse@webrtc.org

[nisse-webrtc, 2016-06-08 12:20:46]

Created Revert of New static method I420Buffer::SetToBlack.

[commit-bot: I haz the power, 2016-06-08 12:20:49]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2049023002/1

[commit-bot: I haz the power, 2016-06-08 12:20:57]

Description was changed from

==========
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
==========

to

==========
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
==========

[commit-bot: I haz the power, 2016-06-08 12:20:58]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-08 12:21:09]

Description was changed from

==========
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
==========

to

==========
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}
==========

[commit-bot: I haz the power, 2016-06-08 12:21:11]

Patchset 1 (id:??) landed as
https://crrev.com/271d74078894bb24f454eb31b77e4ce38097a2fa
Cr-Commit-Position: refs/heads/master@{#13065}

[nisse-webrtc, 2016-06-08 13:52:57]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.webrtc.org/2049513005/ by nisse@webrtc.org.

The reason for reverting is: Plan to reland with InitToBlack kept, to be able to
update Chrome to use the new I420Buffer::SetToBlack method..