Clean up GPU Rasterization versions of Smoothness benchmarks

With Mac now running with GPU rasterization enabled by default, we
can remove Mac from a number of the GPU rasterization benchmarks,
and remove some that were only run on mac.

BUG=609523
Committed: https://crrev.com/dae5ac0c4418d454baa570b80d4b5bc23f00149d
Cr-Commit-Position: refs/heads/master@{#396330}

[ericrk, 2016-05-26 18:05:59]

Description was changed from

==========
Remove GPU Rasterization version of tough_pinch_zoom_cases

This is not too useful, as default on mac is now GPU raster.

BUG=609523
==========

to

==========
Remove GPU Rasterization version of tough_pinch_zoom_cases

This is not too useful, as default on mac is now GPU raster.

BUG=609523
CQ_EXTRA_TRYBOTS=tryserver.chromium.perf:android_s5_perf_cq;tryserver.chromium.perf:winx64_10_perf_cq;tryserver.chromium.perf:mac_retina_perf_cq;tryserver.chromium.perf:linux_perf_cq
==========

[ericrk, 2016-05-26 18:17:35]

Description was changed from

==========
Remove GPU Rasterization version of tough_pinch_zoom_cases

This is not too useful, as default on mac is now GPU raster.

BUG=609523
CQ_EXTRA_TRYBOTS=tryserver.chromium.perf:android_s5_perf_cq;tryserver.chromium.perf:winx64_10_perf_cq;tryserver.chromium.perf:mac_retina_perf_cq;tryserver.chromium.perf:linux_perf_cq
==========

to

==========
With Mac now running with GPU rasterization enabled by default, we
can remove Mac from a number of the GPU rasterization benchmarks,
and remove some that were only run on mac.

BUG=609523
CQ_EXTRA_TRYBOTS=tryserver.chromium.perf:android_s5_perf_cq;tryserver.chromium.perf:winx64_10_perf_cq;tryserver.chromium.perf:mac_retina_perf_cq;tryserver.chromium.perf:linux_perf_cq
==========

[ericrk, 2016-05-26 18:17:35]

ericrk@chromium.org changed reviewers:
+ nednguyen@google.com

[ericrk, 2016-05-26 18:18:52]

https://codereview.chromium.org/2016773002/diff/20001/tools/perf/benchmarks/s...
File tools/perf/benchmarks/smoothness.py (left):

https://codereview.chromium.org/2016773002/diff/20001/tools/perf/benchmarks/s...
tools/perf/benchmarks/smoothness.py:332: @benchmark.Enabled('chromeos', 'mac')
This never ran on ChromeOS - adding ChromeOS to this when I added it was a
mistake.

[nednguyen, 2016-05-26 18:20:49]

lgtm

[ericrk, 2016-05-26 19:03:27]

The CQ bit was checked by ericrk@chromium.org

[commit-bot: I haz the power, 2016-05-26 19:03:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2016773002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2016773002/20001

[commit-bot: I haz the power, 2016-05-26 22:50:33]

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

[commit-bot: I haz the power, 2016-05-26 22:50:34]

Try jobs failed on following builders:
  linux_perf_cq on tryserver.chromium.perf (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.perf/builders/linux_perf_cq/bu...)

[ericrk, 2016-05-26 23:42:28]

The CQ bit was checked by ericrk@chromium.org

[commit-bot: I haz the power, 2016-05-26 23:43:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2016773002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2016773002/20001

[nednguyen, 2016-05-27 00:05:06]

Description was changed from

==========
With Mac now running with GPU rasterization enabled by default, we
can remove Mac from a number of the GPU rasterization benchmarks,
and remove some that were only run on mac.

BUG=609523
CQ_EXTRA_TRYBOTS=tryserver.chromium.perf:android_s5_perf_cq;tryserver.chromium.perf:winx64_10_perf_cq;tryserver.chromium.perf:mac_retina_perf_cq;tryserver.chromium.perf:linux_perf_cq
==========

to

==========
With Mac now running with GPU rasterization enabled by default, we
can remove Mac from a number of the GPU rasterization benchmarks,
and remove some that were only run on mac.

BUG=609523
==========

[commit-bot: I haz the power, 2016-05-27 00:34:14]

Description was changed from

==========
With Mac now running with GPU rasterization enabled by default, we
can remove Mac from a number of the GPU rasterization benchmarks,
and remove some that were only run on mac.

BUG=609523
==========

to

==========
With Mac now running with GPU rasterization enabled by default, we
can remove Mac from a number of the GPU rasterization benchmarks,
and remove some that were only run on mac.

BUG=609523
==========

[commit-bot: I haz the power, 2016-05-27 00:34:15]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-05-27 00:36:05]

Description was changed from

==========
With Mac now running with GPU rasterization enabled by default, we
can remove Mac from a number of the GPU rasterization benchmarks,
and remove some that were only run on mac.

BUG=609523
==========

to

==========
With Mac now running with GPU rasterization enabled by default, we
can remove Mac from a number of the GPU rasterization benchmarks,
and remove some that were only run on mac.

BUG=609523

Committed: https://crrev.com/dae5ac0c4418d454baa570b80d4b5bc23f00149d
Cr-Commit-Position: refs/heads/master@{#396330}
==========

[commit-bot: I haz the power, 2016-05-27 00:36:06]

Patchset 2 (id:??) landed as
https://crrev.com/dae5ac0c4418d454baa570b80d4b5bc23f00149d
Cr-Commit-Position: refs/heads/master@{#396330}