Revert workaround due to perf regression

Revert workaround due to perf regression

Revert "Work around unknown Mac Intel driver bug causing non-deterministic behavior in GPU readback from 2D canvas" ( https://crrev.com/2503283007 )

Revert "clarify description for force_software_readback_from_2d_canvas" ( https://crrev.com/2505363004 )

BUG=667352, 665656
TBR=kbr@chromium.org,esprehn@chromium.org,piman@chromium.org,zmo@chromium.org,tsepez@chromium.org,ben@chromium.org

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;master.tryserver.chromium.android:android_optional_gpu_tests_rel

Committed: https://crrev.com/04a4e99b99f399411837ebe3489e9e2b2bd96685
Cr-Commit-Position: refs/heads/master@{#433704}

[Kai Ninomiya, 2016-11-21 20:19:18]

Description was changed from

==========
Revert workaround due to perf regression

Revert "Work around unknown Mac Intel driver bug causing non-deterministic
behavior in GPU readback from 2D canvas"

This reverts commit e4acee67ea6e24c3e594719ca33b4beeb46b4bc6.

Revert "clarify description for force_software_readback_from_2d_canvas"

This reverts commit 9309c93173ffe2982a8e9e8af127300fc4cd063e.

BUG=667352
==========

to

==========
Revert workaround due to perf regression

Revert "Work around unknown Mac Intel driver bug causing non-deterministic
behavior in GPU readback from 2D canvas"

This reverts commit e4acee67ea6e24c3e594719ca33b4beeb46b4bc6.

Revert "clarify description for force_software_readback_from_2d_canvas"

This reverts commit 9309c93173ffe2982a8e9e8af127300fc4cd063e.

BUG=667352
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
==========

[Kai Ninomiya, 2016-11-21 20:19:19]

Description was changed from

==========
Revert workaround due to perf regression

Revert "Work around unknown Mac Intel driver bug causing non-deterministic
behavior in GPU readback from 2D canvas"

This reverts commit e4acee67ea6e24c3e594719ca33b4beeb46b4bc6.

Revert "clarify description for force_software_readback_from_2d_canvas"

This reverts commit 9309c93173ffe2982a8e9e8af127300fc4cd063e.

BUG=667352
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
==========

to

==========
Revert workaround due to perf regression

Revert "Work around unknown Mac Intel driver bug causing non-deterministic
behavior in GPU readback from 2D canvas"

This reverts commit e4acee67ea6e24c3e594719ca33b4beeb46b4bc6.

Revert "clarify description for force_software_readback_from_2d_canvas"

This reverts commit 9309c93173ffe2982a8e9e8af127300fc4cd063e.

BUG=667352
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;master.tryserver.chromium.android:android_optional_gpu_tests_rel
==========

[Kai Ninomiya, 2016-11-21 20:27:33]

Description was changed from

==========
Revert workaround due to perf regression

Revert "Work around unknown Mac Intel driver bug causing non-deterministic
behavior in GPU readback from 2D canvas"

This reverts commit e4acee67ea6e24c3e594719ca33b4beeb46b4bc6.

Revert "clarify description for force_software_readback_from_2d_canvas"

This reverts commit 9309c93173ffe2982a8e9e8af127300fc4cd063e.

BUG=667352
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;master.tryserver.chromium.android:android_optional_gpu_tests_rel
==========

to

==========
Revert workaround due to perf regression

Revert "Work around unknown Mac Intel driver bug causing non-deterministic
behavior in GPU readback from 2D canvas" ( https://crrev.com/2503283007 )

Revert "clarify description for force_software_readback_from_2d_canvas" (
https://crrev.com/2505363004 )

BUG=667352
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;master.tryserver.chromium.android:android_optional_gpu_tests_rel
==========

[Kai Ninomiya, 2016-11-21 20:31:47]

Description was changed from

==========
Revert workaround due to perf regression

Revert "Work around unknown Mac Intel driver bug causing non-deterministic
behavior in GPU readback from 2D canvas" ( https://crrev.com/2503283007 )

Revert "clarify description for force_software_readback_from_2d_canvas" (
https://crrev.com/2505363004 )

BUG=667352
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;master.tryserver.chromium.android:android_optional_gpu_tests_rel
==========

to

==========
Revert workaround due to perf regression

Revert "Work around unknown Mac Intel driver bug causing non-deterministic
behavior in GPU readback from 2D canvas" ( https://crrev.com/2503283007 )

Revert "clarify description for force_software_readback_from_2d_canvas" (
https://crrev.com/2505363004 )

BUG=667352,665656
TBR=kbr@chromium.org,esprehn@chromium.org,piman@chromium.org,zmo@chromium.org...

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;master.tryserver.chromium.android:android_optional_gpu_tests_rel
==========

[Kai Ninomiya, 2016-11-21 20:31:47]

kainino@chromium.org changed reviewers:
+ kbr@chromium.org

[Kai Ninomiya, 2016-11-21 20:32:10]

The CQ bit was checked by kainino@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-21 20:33:41]

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

[Kai Ninomiya, 2016-11-21 20:51:31]

PTAL

[Ken Russell (switch to Gerrit), 2016-11-21 20:55:25]

lgtm

[Ken Russell (switch to Gerrit), 2016-11-21 20:55:34]

The CQ bit was unchecked by kbr@chromium.org

[Ken Russell (switch to Gerrit), 2016-11-21 20:55:37]

The CQ bit was checked by kbr@chromium.org

[commit-bot: I haz the power, 2016-11-21 20:56:07]

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, 2016-11-21 22:30:47]

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

[commit-bot: I haz the power, 2016-11-21 22:30:48]

Try jobs failed on following builders:
  android_optional_gpu_tests_rel on master.tryserver.chromium.android
(JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/android_opti...)

[Ken Russell (switch to Gerrit), 2016-11-21 22:38:13]

The CQ bit was checked by kbr@chromium.org

[commit-bot: I haz the power, 2016-11-21 22:39:01]

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, 2016-11-21 23:55:31]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1479767893695810, "parent_rev":
"131e2594351b7b5feb2f5602213ef6c59a097448", "commit_rev":
"0b99164caae7ba0aada60c533e8cc8c90b7f4bc9"}

[commit-bot: I haz the power, 2016-11-21 23:55:57]

Description was changed from

==========
Revert workaround due to perf regression

Revert "Work around unknown Mac Intel driver bug causing non-deterministic
behavior in GPU readback from 2D canvas" ( https://crrev.com/2503283007 )

Revert "clarify description for force_software_readback_from_2d_canvas" (
https://crrev.com/2505363004 )

BUG=667352,665656
TBR=kbr@chromium.org,esprehn@chromium.org,piman@chromium.org,zmo@chromium.org...

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;master.tryserver.chromium.android:android_optional_gpu_tests_rel
==========

to

==========
Revert workaround due to perf regression

Revert "Work around unknown Mac Intel driver bug causing non-deterministic
behavior in GPU readback from 2D canvas" ( https://crrev.com/2503283007 )

Revert "clarify description for force_software_readback_from_2d_canvas" (
https://crrev.com/2505363004 )

BUG=667352,665656
TBR=kbr@chromium.org,esprehn@chromium.org,piman@chromium.org,zmo@chromium.org...

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;master.tryserver.chromium.android:android_optional_gpu_tests_rel
==========

[commit-bot: I haz the power, 2016-11-21 23:56:00]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-21 23:59:37]

Description was changed from

==========
Revert workaround due to perf regression

Revert "Work around unknown Mac Intel driver bug causing non-deterministic
behavior in GPU readback from 2D canvas" ( https://crrev.com/2503283007 )

Revert "clarify description for force_software_readback_from_2d_canvas" (
https://crrev.com/2505363004 )

BUG=667352,665656
TBR=kbr@chromium.org,esprehn@chromium.org,piman@chromium.org,zmo@chromium.org...

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;master.tryserver.chromium.android:android_optional_gpu_tests_rel
==========

to

==========
Revert workaround due to perf regression

Revert "Work around unknown Mac Intel driver bug causing non-deterministic
behavior in GPU readback from 2D canvas" ( https://crrev.com/2503283007 )

Revert "clarify description for force_software_readback_from_2d_canvas" (
https://crrev.com/2505363004 )

BUG=667352,665656
TBR=kbr@chromium.org,esprehn@chromium.org,piman@chromium.org,zmo@chromium.org...

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;master.tryserver.chromium.android:android_optional_gpu_tests_rel

Committed: https://crrev.com/04a4e99b99f399411837ebe3489e9e2b2bd96685
Cr-Commit-Position: refs/heads/master@{#433704}
==========

[commit-bot: I haz the power, 2016-11-21 23:59:38]

Patchset 1 (id:??) landed as
https://crrev.com/04a4e99b99f399411837ebe3489e9e2b2bd96685
Cr-Commit-Position: refs/heads/master@{#433704}