Revert of Re-enable WebGL Image Chromium.

Revert of Re-enable WebGL Image Chromium. (patchset #3 id:40001 of https://codereview.chromium.org/2025973002/ )

Reason for revert:
I'm observing a behavior difference between the Image CHROMIUM and non-Image CHROMIUM path. Turning off Image CHROMIUM while I investigate.
https://bugs.chromium.org/p/chromium/issues/detail?id=617249#c5

Original issue's description:
> Re-enable WebGL Image Chromium.
>
> This CL makes DrawingBuffer use the newly added DescheduleUntilFinishedCHROMIUM,
> and turns on IOSurface backed WebGL by default.
>
> BUG=581777
>
> Committed: https://crrev.com/801f15833c140f120a2f5baed88645cb0619ab86
> Cr-Commit-Position: refs/heads/master@{#397603}

TBR=kbr@chromium.org,avi@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=581777
Committed: https://crrev.com/6a90cbb5bebd484ea02e8fbd4894655092e0cf95
Cr-Commit-Position: refs/heads/master@{#398096}

[erikchen, 2016-06-06 17:29:18]

The CQ bit was checked by erikchen@chromium.org

[erikchen, 2016-06-06 17:29:19]

Created Revert of Re-enable WebGL Image Chromium.

[erikchen, 2016-06-06 17:29:23]

The CQ bit was unchecked by erikchen@chromium.org

[erikchen, 2016-06-06 17:34:20]

The CQ bit was checked by erikchen@chromium.org

[commit-bot: I haz the power, 2016-06-06 17:35:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2041053002/1

[commit-bot: I haz the power, 2016-06-06 19:41:00]

Description was changed from

==========
Revert of Re-enable WebGL Image Chromium. (patchset #3 id:40001 of
https://codereview.chromium.org/2025973002/ )

Reason for revert:
I'm observing a behavior difference between the Image CHROMIUM and non-Image
CHROMIUM path. Turning off Image CHROMIUM while I investigate.
https://bugs.chromium.org/p/chromium/issues/detail?id=617249#c5

Original issue's description:
> Re-enable WebGL Image Chromium.
> 
> This CL makes DrawingBuffer use the newly added
DescheduleUntilFinishedCHROMIUM,
> and turns on IOSurface backed WebGL by default.
> 
> BUG=581777
> 
> Committed: https://crrev.com/801f15833c140f120a2f5baed88645cb0619ab86
> Cr-Commit-Position: refs/heads/master@{#397603}

TBR=kbr@chromium.org,avi@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=581777
==========

to

==========
Revert of Re-enable WebGL Image Chromium. (patchset #3 id:40001 of
https://codereview.chromium.org/2025973002/ )

Reason for revert:
I'm observing a behavior difference between the Image CHROMIUM and non-Image
CHROMIUM path. Turning off Image CHROMIUM while I investigate.
https://bugs.chromium.org/p/chromium/issues/detail?id=617249#c5

Original issue's description:
> Re-enable WebGL Image Chromium.
> 
> This CL makes DrawingBuffer use the newly added
DescheduleUntilFinishedCHROMIUM,
> and turns on IOSurface backed WebGL by default.
> 
> BUG=581777
> 
> Committed: https://crrev.com/801f15833c140f120a2f5baed88645cb0619ab86
> Cr-Commit-Position: refs/heads/master@{#397603}

TBR=kbr@chromium.org,avi@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=581777
==========

[commit-bot: I haz the power, 2016-06-06 19:41:01]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-06 19:44:16]

Description was changed from

==========
Revert of Re-enable WebGL Image Chromium. (patchset #3 id:40001 of
https://codereview.chromium.org/2025973002/ )

Reason for revert:
I'm observing a behavior difference between the Image CHROMIUM and non-Image
CHROMIUM path. Turning off Image CHROMIUM while I investigate.
https://bugs.chromium.org/p/chromium/issues/detail?id=617249#c5

Original issue's description:
> Re-enable WebGL Image Chromium.
> 
> This CL makes DrawingBuffer use the newly added
DescheduleUntilFinishedCHROMIUM,
> and turns on IOSurface backed WebGL by default.
> 
> BUG=581777
> 
> Committed: https://crrev.com/801f15833c140f120a2f5baed88645cb0619ab86
> Cr-Commit-Position: refs/heads/master@{#397603}

TBR=kbr@chromium.org,avi@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=581777
==========

to

==========
Revert of Re-enable WebGL Image Chromium. (patchset #3 id:40001 of
https://codereview.chromium.org/2025973002/ )

Reason for revert:
I'm observing a behavior difference between the Image CHROMIUM and non-Image
CHROMIUM path. Turning off Image CHROMIUM while I investigate.
https://bugs.chromium.org/p/chromium/issues/detail?id=617249#c5

Original issue's description:
> Re-enable WebGL Image Chromium.
>
> This CL makes DrawingBuffer use the newly added
DescheduleUntilFinishedCHROMIUM,
> and turns on IOSurface backed WebGL by default.
>
> BUG=581777
>
> Committed: https://crrev.com/801f15833c140f120a2f5baed88645cb0619ab86
> Cr-Commit-Position: refs/heads/master@{#397603}

TBR=kbr@chromium.org,avi@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=581777

Committed: https://crrev.com/6a90cbb5bebd484ea02e8fbd4894655092e0cf95
Cr-Commit-Position: refs/heads/master@{#398096}
==========

[commit-bot: I haz the power, 2016-06-06 19:44:17]

Patchset 1 (id:??) landed as
https://crrev.com/6a90cbb5bebd484ea02e8fbd4894655092e0cf95
Cr-Commit-Position: refs/heads/master@{#398096}