Use 'approx equals' in negative playback rate test

Use 'approx equals' in negative playback rate test

Due to floating point error, some tests in the web-animations-api/
animation-state-changes-negative-playback-rate.html layout test
flakily fail. This patch changes some asserts from assert_equals
to assert_approx_equals with an epsilon of 0.000001.

BUG=593982
Committed: https://crrev.com/313087501309dddbcc94481ee7ef666472079bee
Cr-Commit-Position: refs/heads/master@{#385612}

[suzyh_UTC10 (ex-contributor), 2016-04-06 04:24:59]

suzyh@chromium.org changed reviewers:
+ dstockwell@chromium.org

[suzyh_UTC10 (ex-contributor), 2016-04-06 04:25:10]

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

[commit-bot: I haz the power, 2016-04-06 04:25:36]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1861473004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1861473004/1

[commit-bot: I haz the power, 2016-04-06 06:47:16]

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

[commit-bot: I haz the power, 2016-04-06 06:47:17]

Dry run: This issue passed the CQ dry run.

[dstockwell, 2016-04-07 01:19:33]

lgtm

[suzyh_UTC10 (ex-contributor), 2016-04-07 01:21:22]

The CQ bit was checked by suzyh@chromium.org

[commit-bot: I haz the power, 2016-04-07 01:22:19]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1861473004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1861473004/1

[commit-bot: I haz the power, 2016-04-07 01:28:29]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-07 01:29:55]

Description was changed from

==========
Use 'approx equals' in negative playback rate test

Due to floating point error, some tests in the web-animations-api/
animation-state-changes-negative-playback-rate.html layout test
flakily fail. This patch changes some asserts from assert_equals
to assert_approx_equals with an epsilon of 0.000001.

BUG=593982
==========

to

==========
Use 'approx equals' in negative playback rate test

Due to floating point error, some tests in the web-animations-api/
animation-state-changes-negative-playback-rate.html layout test
flakily fail. This patch changes some asserts from assert_equals
to assert_approx_equals with an epsilon of 0.000001.

BUG=593982

Committed: https://crrev.com/313087501309dddbcc94481ee7ef666472079bee
Cr-Commit-Position: refs/heads/master@{#385612}
==========

[commit-bot: I haz the power, 2016-04-07 01:29:56]

Patchset 1 (id:??) landed as
https://crrev.com/313087501309dddbcc94481ee7ef666472079bee
Cr-Commit-Position: refs/heads/master@{#385612}