roll in reed's change

2017-06-23 reed optimize imageshaders to use clamp for dimension==1
2017-06-23 bsalomon Reduce ANGLE correctness testing blacklists

BUG=

[reed1, 2017-06-26 10:40:22]

The CQ bit was checked by reed@google.com to run a CQ dry run

[commit-bot: I haz the power, 2017-06-26 10:40:27]

Dry run: CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[reed1, 2017-06-26 10:40:55]

Description was changed from

==========
roll first reed

BUG=
==========

to

==========
2017-06-23 reed optimize imageshaders to use clamp for dimension==1
2017-06-23 bsalomon Reduce ANGLE correctness testing blacklists

BUG=
==========

[reed1, 2017-06-26 10:59:51]

reed@google.com changed reviewers:
+ bsalomon@chromium.org, fmalita@chromium.org, herb@chromium.org

[commit-bot: I haz the power, 2017-06-26 11:47:17]

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

[commit-bot: I haz the power, 2017-06-26 11:47:18]

Dry run: Try jobs failed on following builders:
  ios-simulator on master.tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios-simulator/bui...)

[reed1, 2017-06-26 12:00:16]

The CQ bit was checked by reed@google.com to run a CQ dry run

[commit-bot: I haz the power, 2017-06-26 12:00:27]

Dry run: CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[reed1, 2017-06-26 12:05:10]

reed@google.com changed reviewers:
+ mtklein@google.com

[commit-bot: I haz the power, 2017-06-26 12:30:23]

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

[commit-bot: I haz the power, 2017-06-26 12:30:24]

Dry run: This issue passed the CQ dry run.