Revert of Implement helper functionalities for computing image size with ES3 settings.

Revert of Implement helper functionalities for computing image size with ES3 settings. (patchset #6 id:140001 of https://codereview.chromium.org/1508953002/ )

Reason for revert:
Jamie thinks this caused the GLES2ConformTest.GL2FixedTests_divide_by_zero_input_run test to fail on FYI waterfall

Original issue's description:
> Implement helper functionalities for computing image size with ES3 settings.
>
> This will be used in ReadPixels, Tex{Sub}Image* in followup CLs.
>
> BUG=429053, 563714
> TEST=gpu_unittests
> R=piman@chromium.org
>
> Committed: https://crrev.com/e0b58d1f24bce6a6f19dcbe5e857e3731d0631ca
> Cr-Commit-Position: refs/heads/master@{#364095}

TBR=piman@chromium.org,kbr@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=429053, 563714
Committed: https://crrev.com/ce844811f91dcdf3744e5ec97eff4cd5bdc49880
Cr-Commit-Position: refs/heads/master@{#364119}

[Zhenyao Mo, 2015-12-09 19:08:54]

Created Revert of Implement helper functionalities for computing image size with
ES3 settings.

[commit-bot: I haz the power, 2015-12-09 19:13:39]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1511773006/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1511773006/1

[commit-bot: I haz the power, 2015-12-09 19:17:13]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-09 19:18:41]

Description was changed from

==========
Revert of Implement helper functionalities for computing image size with ES3
settings. (patchset #6 id:140001 of https://codereview.chromium.org/1508953002/
)

Reason for revert:
Jamie thinks this caused the
GLES2ConformTest.GL2FixedTests_divide_by_zero_input_run test to fail on FYI
waterfall

Original issue's description:
> Implement helper functionalities for computing image size with ES3 settings.
> 
> This will be used in ReadPixels, Tex{Sub}Image* in followup CLs.
> 
> BUG=429053,563714
> TEST=gpu_unittests
> R=piman@chromium.org
> 
> Committed: https://crrev.com/e0b58d1f24bce6a6f19dcbe5e857e3731d0631ca
> Cr-Commit-Position: refs/heads/master@{#364095}

TBR=piman@chromium.org,kbr@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=429053,563714
==========

to

==========
Revert of Implement helper functionalities for computing image size with ES3
settings. (patchset #6 id:140001 of https://codereview.chromium.org/1508953002/
)

Reason for revert:
Jamie thinks this caused the
GLES2ConformTest.GL2FixedTests_divide_by_zero_input_run test to fail on FYI
waterfall

Original issue's description:
> Implement helper functionalities for computing image size with ES3 settings.
>
> This will be used in ReadPixels, Tex{Sub}Image* in followup CLs.
>
> BUG=429053,563714
> TEST=gpu_unittests
> R=piman@chromium.org
>
> Committed: https://crrev.com/e0b58d1f24bce6a6f19dcbe5e857e3731d0631ca
> Cr-Commit-Position: refs/heads/master@{#364095}

TBR=piman@chromium.org,kbr@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=429053,563714

Committed: https://crrev.com/ce844811f91dcdf3744e5ec97eff4cd5bdc49880
Cr-Commit-Position: refs/heads/master@{#364119}
==========

[commit-bot: I haz the power, 2015-12-09 19:18:42]

Patchset 1 (id:??) landed as
https://crrev.com/ce844811f91dcdf3744e5ec97eff4cd5bdc49880
Cr-Commit-Position: refs/heads/master@{#364119}