Revert of gpu: Expose internal format R8 instead of RED.

Revert of gpu: Expose internal format R8 instead of RED. (patchset #8 id:140001 of https://codereview.chromium.org/1708263002/ )

Reason for revert:
This broke videos on windows: crbug.com/589775

Original issue's description:
> gpu: Expose internal format R8 instead of RED.
>
> As noted in crrev.com/1703153002 GL_R8 sized internalformat should be preferred to
> GL_RED.
>
> This CL lets the users of the command buffer use GL_R8, and it takes care of
> converting it to GL_RED when not supported by the underlying GL context.
>
> BUG=
> CQ_INCLUDE_TRYBOTS=tryserver.chromium.win:win_optional_gpu_tests_rel
>
> Committed: https://crrev.com/7b277c596c517ce4a5d0985ace0da1806f2470f4
> Cr-Commit-Position: refs/heads/master@{#377222}

TBR=dalecurtis@chromium.org,reveman@chromium.org,zmo@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=

Committed: https://crrev.com/ecfa963e574cc83d138ded8ebf523275e667d733
Cr-Commit-Position: refs/heads/master@{#377682}

[Daniele Castagna, 2016-02-25 20:22:48]

Created Revert of gpu: Expose internal format R8 instead of RED.

[commit-bot: I haz the power, 2016-02-25 20:25:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1741513002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1741513002/1

[commit-bot: I haz the power, 2016-02-25 20:33:26]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1741513002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1741513002/1

[commit-bot: I haz the power, 2016-02-25 21:03:39]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1741513002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1741513002/1

[commit-bot: I haz the power, 2016-02-25 21:34:08]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1741513002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1741513002/1

[commit-bot: I haz the power, 2016-02-25 22:00:47]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-25 22:02:09]

Description was changed from

==========
Revert of gpu: Expose internal format R8 instead of RED. (patchset #8 id:140001
of https://codereview.chromium.org/1708263002/ )

Reason for revert:
This broke videos on windows: crbug.com/589775

Original issue's description:
> gpu: Expose internal format R8 instead of RED.
> 
> As noted in crrev.com/1703153002 GL_R8 sized internalformat should be
preferred to
> GL_RED.
> 
> This CL lets the users of the command buffer use GL_R8, and it takes care of
> converting it to GL_RED when not supported by the underlying GL context.
> 
> BUG=
> CQ_INCLUDE_TRYBOTS=tryserver.chromium.win:win_optional_gpu_tests_rel
> 
> Committed: https://crrev.com/7b277c596c517ce4a5d0985ace0da1806f2470f4
> Cr-Commit-Position: refs/heads/master@{#377222}

TBR=dalecurtis@chromium.org,reveman@chromium.org,zmo@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=
==========

to

==========
Revert of gpu: Expose internal format R8 instead of RED. (patchset #8 id:140001
of https://codereview.chromium.org/1708263002/ )

Reason for revert:
This broke videos on windows: crbug.com/589775

Original issue's description:
> gpu: Expose internal format R8 instead of RED.
>
> As noted in crrev.com/1703153002 GL_R8 sized internalformat should be
preferred to
> GL_RED.
>
> This CL lets the users of the command buffer use GL_R8, and it takes care of
> converting it to GL_RED when not supported by the underlying GL context.
>
> BUG=
> CQ_INCLUDE_TRYBOTS=tryserver.chromium.win:win_optional_gpu_tests_rel
>
> Committed: https://crrev.com/7b277c596c517ce4a5d0985ace0da1806f2470f4
> Cr-Commit-Position: refs/heads/master@{#377222}

TBR=dalecurtis@chromium.org,reveman@chromium.org,zmo@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=

Committed: https://crrev.com/ecfa963e574cc83d138ded8ebf523275e667d733
Cr-Commit-Position: refs/heads/master@{#377682}
==========

[commit-bot: I haz the power, 2016-02-25 22:02:10]

Patchset 1 (id:??) landed as
https://crrev.com/ecfa963e574cc83d138ded8ebf523275e667d733
Cr-Commit-Position: refs/heads/master@{#377682}