Reland of WebGL: use storage texture for DrawingBuffer only if CMAA is enabled.

Reland of WebGL: use storage texture for DrawingBuffer only if CMAA is enabled. (patchset #1 id:1 of https://codereview.chromium.org/2133253003/ )

Reason for revert:
ATI bot failed due to this CL.

ATI bot was fine because we disabled WebglConformance.conformance_textures_misc_tex_image_webgl
However, https://codereview.chromium.org/2141893002/ enabled the test again, so this CL must be reverted.

Original issue's description:
> Revert of WebGL: use storage texture for DrawingBuffer only if CMAA is enabled. (patchset #3 id:60001 of https://codereview.chromium.org/2131863003/ )
>
> Reason for revert:
> ATI GPU bots became green, no matter this CL. ATI GPU bot might be in bad shape for some reasons.
> So revert this redundant speculative fix.
>
> Original issue's description:
> > WebGL: use storage texture for DrawingBuffer only if CMAA is enabled.
> >
> > It's because Linux ATI bot fails
> > WebglConformance.conformance_textures_misc_tex_image_webgl
> > When finding the solution for ATI driver, rollback this patch.
> >
> > BUG=557848
> > TEST=WebglConformance.conformance_textures_misc_tex_image_webgl
> > CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel;tryserver.chromium.win:win_optional_gpu_tests_rel
> >
> > Committed: https://crrev.com/65f8f6c737278a80acee2bcd407d1fdc15426fa8
> > Cr-Commit-Position: refs/heads/master@{#404514}
>
> TBR=piman@chromium.org,kbr@chromium.org,zmo@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=557848
>
> Committed: https://crrev.com/e33a44a7077c60edfa28bc0d79b0910ab43d58d1
> Cr-Commit-Position: refs/heads/master@{#404563}

TBR=piman@chromium.org,kbr@chromium.org,zmo@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=557848
Committed: https://crrev.com/5de5bf320abfd923cbeb5a11b832eb81c9952bde
Cr-Commit-Position: refs/heads/master@{#405131}

[dshwang, 2016-07-13 11:46:05]

The CQ bit was checked by dongseong.hwang@intel.com

[dshwang, 2016-07-13 11:46:06]

Created Reland of WebGL: use storage texture for DrawingBuffer only if CMAA is
enabled.

[commit-bot: I haz the power, 2016-07-13 11:46:20]

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, 2016-07-13 12:50:57]

Description was changed from

==========
Reland of WebGL: use storage texture for DrawingBuffer only if CMAA is enabled.
(patchset #1 id:1 of https://codereview.chromium.org/2133253003/ )

Reason for revert:
ATI bot failed due to this CL.

ATI bot was fine because we disabled
WebglConformance.conformance_textures_misc_tex_image_webgl
However, https://codereview.chromium.org/2141893002/ enabled the test again, so
this CL must be reverted.

Original issue's description:
> Revert of WebGL: use storage texture for DrawingBuffer only if CMAA is
enabled. (patchset #3 id:60001 of https://codereview.chromium.org/2131863003/ )
> 
> Reason for revert:
> ATI GPU bots became green, no matter this CL. ATI GPU bot might be in bad
shape for some reasons.
> So revert this redundant speculative fix.
> 
> Original issue's description:
> > WebGL: use storage texture for DrawingBuffer only if CMAA is enabled.
> >
> > It's because Linux ATI bot fails
> > WebglConformance.conformance_textures_misc_tex_image_webgl
> > When finding the solution for ATI driver, rollback this patch.
> >
> > BUG=557848
> > TEST=WebglConformance.conformance_textures_misc_tex_image_webgl
> >
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel;tryserver.chromium.win:win_optional_gpu_tests_rel
> >
> > Committed: https://crrev.com/65f8f6c737278a80acee2bcd407d1fdc15426fa8
> > Cr-Commit-Position: refs/heads/master@{#404514}
> 
> TBR=piman@chromium.org,kbr@chromium.org,zmo@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=557848
> 
> Committed: https://crrev.com/e33a44a7077c60edfa28bc0d79b0910ab43d58d1
> Cr-Commit-Position: refs/heads/master@{#404563}

TBR=piman@chromium.org,kbr@chromium.org,zmo@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=557848
==========

to

==========
Reland of WebGL: use storage texture for DrawingBuffer only if CMAA is enabled.
(patchset #1 id:1 of https://codereview.chromium.org/2133253003/ )

Reason for revert:
ATI bot failed due to this CL.

ATI bot was fine because we disabled
WebglConformance.conformance_textures_misc_tex_image_webgl
However, https://codereview.chromium.org/2141893002/ enabled the test again, so
this CL must be reverted.

Original issue's description:
> Revert of WebGL: use storage texture for DrawingBuffer only if CMAA is
enabled. (patchset #3 id:60001 of https://codereview.chromium.org/2131863003/ )
> 
> Reason for revert:
> ATI GPU bots became green, no matter this CL. ATI GPU bot might be in bad
shape for some reasons.
> So revert this redundant speculative fix.
> 
> Original issue's description:
> > WebGL: use storage texture for DrawingBuffer only if CMAA is enabled.
> >
> > It's because Linux ATI bot fails
> > WebglConformance.conformance_textures_misc_tex_image_webgl
> > When finding the solution for ATI driver, rollback this patch.
> >
> > BUG=557848
> > TEST=WebglConformance.conformance_textures_misc_tex_image_webgl
> >
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel;tryserver.chromium.win:win_optional_gpu_tests_rel
> >
> > Committed: https://crrev.com/65f8f6c737278a80acee2bcd407d1fdc15426fa8
> > Cr-Commit-Position: refs/heads/master@{#404514}
> 
> TBR=piman@chromium.org,kbr@chromium.org,zmo@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=557848
> 
> Committed: https://crrev.com/e33a44a7077c60edfa28bc0d79b0910ab43d58d1
> Cr-Commit-Position: refs/heads/master@{#404563}

TBR=piman@chromium.org,kbr@chromium.org,zmo@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=557848
==========

[commit-bot: I haz the power, 2016-07-13 12:50:58]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-13 12:51:02]

CQ bit was unchecked.

[commit-bot: I haz the power, 2016-07-13 12:52:46]

Description was changed from

==========
Reland of WebGL: use storage texture for DrawingBuffer only if CMAA is enabled.
(patchset #1 id:1 of https://codereview.chromium.org/2133253003/ )

Reason for revert:
ATI bot failed due to this CL.

ATI bot was fine because we disabled
WebglConformance.conformance_textures_misc_tex_image_webgl
However, https://codereview.chromium.org/2141893002/ enabled the test again, so
this CL must be reverted.

Original issue's description:
> Revert of WebGL: use storage texture for DrawingBuffer only if CMAA is
enabled. (patchset #3 id:60001 of https://codereview.chromium.org/2131863003/ )
> 
> Reason for revert:
> ATI GPU bots became green, no matter this CL. ATI GPU bot might be in bad
shape for some reasons.
> So revert this redundant speculative fix.
> 
> Original issue's description:
> > WebGL: use storage texture for DrawingBuffer only if CMAA is enabled.
> >
> > It's because Linux ATI bot fails
> > WebglConformance.conformance_textures_misc_tex_image_webgl
> > When finding the solution for ATI driver, rollback this patch.
> >
> > BUG=557848
> > TEST=WebglConformance.conformance_textures_misc_tex_image_webgl
> >
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel;tryserver.chromium.win:win_optional_gpu_tests_rel
> >
> > Committed: https://crrev.com/65f8f6c737278a80acee2bcd407d1fdc15426fa8
> > Cr-Commit-Position: refs/heads/master@{#404514}
> 
> TBR=piman@chromium.org,kbr@chromium.org,zmo@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=557848
> 
> Committed: https://crrev.com/e33a44a7077c60edfa28bc0d79b0910ab43d58d1
> Cr-Commit-Position: refs/heads/master@{#404563}

TBR=piman@chromium.org,kbr@chromium.org,zmo@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=557848
==========

to

==========
Reland of WebGL: use storage texture for DrawingBuffer only if CMAA is enabled.
(patchset #1 id:1 of https://codereview.chromium.org/2133253003/ )

Reason for revert:
ATI bot failed due to this CL.

ATI bot was fine because we disabled
WebglConformance.conformance_textures_misc_tex_image_webgl
However, https://codereview.chromium.org/2141893002/ enabled the test again, so
this CL must be reverted.

Original issue's description:
> Revert of WebGL: use storage texture for DrawingBuffer only if CMAA is
enabled. (patchset #3 id:60001 of https://codereview.chromium.org/2131863003/ )
>
> Reason for revert:
> ATI GPU bots became green, no matter this CL. ATI GPU bot might be in bad
shape for some reasons.
> So revert this redundant speculative fix.
>
> Original issue's description:
> > WebGL: use storage texture for DrawingBuffer only if CMAA is enabled.
> >
> > It's because Linux ATI bot fails
> > WebglConformance.conformance_textures_misc_tex_image_webgl
> > When finding the solution for ATI driver, rollback this patch.
> >
> > BUG=557848
> > TEST=WebglConformance.conformance_textures_misc_tex_image_webgl
> >
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel;tryserver.chromium.win:win_optional_gpu_tests_rel
> >
> > Committed: https://crrev.com/65f8f6c737278a80acee2bcd407d1fdc15426fa8
> > Cr-Commit-Position: refs/heads/master@{#404514}
>
> TBR=piman@chromium.org,kbr@chromium.org,zmo@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=557848
>
> Committed: https://crrev.com/e33a44a7077c60edfa28bc0d79b0910ab43d58d1
> Cr-Commit-Position: refs/heads/master@{#404563}

TBR=piman@chromium.org,kbr@chromium.org,zmo@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=557848

Committed: https://crrev.com/5de5bf320abfd923cbeb5a11b832eb81c9952bde
Cr-Commit-Position: refs/heads/master@{#405131}
==========

[commit-bot: I haz the power, 2016-07-13 12:52:46]

Patchset 1 (id:??) landed as
https://crrev.com/5de5bf320abfd923cbeb5a11b832eb81c9952bde
Cr-Commit-Position: refs/heads/master@{#405131}