Revert of Disable flaky FeedbackTest.ShowFeedback on Chrome OS

Revert of Disable flaky FeedbackTest.ShowFeedback on Chrome OS (patchset #1 id:1 of https://codereview.chromium.org/1865323002/ )

Reason for revert:
Issue now fixed (https://codereview.chromium.org/1871663002/).

Original issue's description:
> Disable flaky FeedbackTest.ShowFeedback on Chrome OS
>
> BUG=601433
> TBR=rkc
> NOTRY=true
>
> Committed: https://crrev.com/764b849cf6d041cd31a335af6d5ee055f15d7567
> Cr-Commit-Position: refs/heads/master@{#385747}

TBR=rkc@chromium.org,beaudoin@chromium.org,magjed@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=601433
Committed: https://crrev.com/b0c2a89c96aee23f0d1561cf9b3b0416effa3e96
Cr-Commit-Position: refs/heads/master@{#385887}

[miu, 2016-04-07 21:52:36]

Created Revert of Disable flaky FeedbackTest.ShowFeedback on Chrome OS

[commit-bot: I haz the power, 2016-04-07 21:53:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1872613002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1872613002/1

[commit-bot: I haz the power, 2016-04-07 21:53:54]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-07 21:55:14]

Description was changed from

==========
Revert of Disable flaky FeedbackTest.ShowFeedback on Chrome OS (patchset #1 id:1
of https://codereview.chromium.org/1865323002/ )

Reason for revert:
Issue now fixed (https://codereview.chromium.org/1871663002/).

Original issue's description:
> Disable flaky FeedbackTest.ShowFeedback on Chrome OS
> 
> BUG=601433
> TBR=rkc
> NOTRY=true
> 
> Committed: https://crrev.com/764b849cf6d041cd31a335af6d5ee055f15d7567
> Cr-Commit-Position: refs/heads/master@{#385747}

TBR=rkc@chromium.org,beaudoin@chromium.org,magjed@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=601433
==========

to

==========
Revert of Disable flaky FeedbackTest.ShowFeedback on Chrome OS (patchset #1 id:1
of https://codereview.chromium.org/1865323002/ )

Reason for revert:
Issue now fixed (https://codereview.chromium.org/1871663002/).

Original issue's description:
> Disable flaky FeedbackTest.ShowFeedback on Chrome OS
>
> BUG=601433
> TBR=rkc
> NOTRY=true
>
> Committed: https://crrev.com/764b849cf6d041cd31a335af6d5ee055f15d7567
> Cr-Commit-Position: refs/heads/master@{#385747}

TBR=rkc@chromium.org,beaudoin@chromium.org,magjed@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=601433

Committed: https://crrev.com/b0c2a89c96aee23f0d1561cf9b3b0416effa3e96
Cr-Commit-Position: refs/heads/master@{#385887}
==========

[commit-bot: I haz the power, 2016-04-07 21:55:15]

Patchset 1 (id:??) landed as
https://crrev.com/b0c2a89c96aee23f0d1561cf9b3b0416effa3e96
Cr-Commit-Position: refs/heads/master@{#385887}