Revert of Add NV12 buffer scanout support from exo to ozone.

Revert of Add NV12 buffer scanout support from exo to ozone. (patchset #3 id:40001 of https://codereview.chromium.org/2296433002/ )

Reason for revert:
This broke YouTube, Hangout, and camera app on many ChromeOS devices. The video was black. See http://crbug.com/648528.

Original issue's description:
> Add NV12 buffer scanout support from exo to ozone.
>
> Let exo import NV12 scanout buffers and use them to composite.
>
> BUG=646148
, b/31159410,b/29625228
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
>
> Committed: https://crrev.com/1e8cdd4dc52fa218459fdc699adc301d36915438
> Cr-Commit-Position: refs/heads/master@{#418096}

TBR=posciak@chromium.org,reveman@chromium.org,sievers@chromium.org,spang@chromium.org,dcastagna@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=646148
, b/31159410,b/29625228

Committed: https://crrev.com/c7604cced37110c007c337b12b8cf924823cc775
Cr-Commit-Position: refs/heads/master@{#420031}

[wuchengli, 2016-09-21 09:26:44]

The CQ bit was checked by wuchengli@chromium.org

[wuchengli, 2016-09-21 09:26:45]

Created Revert of Add NV12 buffer scanout support from exo to ozone.

[commit-bot: I haz the power, 2016-09-21 09:26:58]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-09-21 10:23:12]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-09-21 10:23:13]

Try jobs failed on following builders:
  win_chromium_x64_rel_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_x64_...)

[wuchengli, 2016-09-21 11:47:59]

The CQ bit was checked by wuchengli@chromium.org

[commit-bot: I haz the power, 2016-09-21 11:48:09]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-09-21 12:36:47]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-21 12:38:34]

Description was changed from

==========
Revert of Add NV12 buffer scanout support from exo to ozone. (patchset #3
id:40001 of https://codereview.chromium.org/2296433002/ )

Reason for revert:
This broke YouTube, Hangout, and camera app on many ChromeOS devices. The video
was black. See http://crbug.com/648528.

Original issue's description:
> Add NV12 buffer scanout support from exo to ozone.
> 
> Let exo import NV12 scanout buffers and use them to composite.
> 
> BUG=646148, b/31159410,b/29625228
>
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
> 
> Committed: https://crrev.com/1e8cdd4dc52fa218459fdc699adc301d36915438
> Cr-Commit-Position: refs/heads/master@{#418096}

TBR=posciak@chromium.org,reveman@chromium.org,sievers@chromium.org,spang@chro...
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=646148, b/31159410,b/29625228
==========

to

==========
Revert of Add NV12 buffer scanout support from exo to ozone. (patchset #3
id:40001 of https://codereview.chromium.org/2296433002/ )

Reason for revert:
This broke YouTube, Hangout, and camera app on many ChromeOS devices. The video
was black. See http://crbug.com/648528.

Original issue's description:
> Add NV12 buffer scanout support from exo to ozone.
>
> Let exo import NV12 scanout buffers and use them to composite.
>
> BUG=646148, b/31159410,b/29625228
>
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
>
> Committed: https://crrev.com/1e8cdd4dc52fa218459fdc699adc301d36915438
> Cr-Commit-Position: refs/heads/master@{#418096}

TBR=posciak@chromium.org,reveman@chromium.org,sievers@chromium.org,spang@chro...
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=646148, b/31159410,b/29625228

Committed: https://crrev.com/c7604cced37110c007c337b12b8cf924823cc775
Cr-Commit-Position: refs/heads/master@{#420031}
==========

[commit-bot: I haz the power, 2016-09-21 12:38:35]

Patchset 1 (id:??) landed as
https://crrev.com/c7604cced37110c007c337b12b8cf924823cc775
Cr-Commit-Position: refs/heads/master@{#420031}