Revert of Disable flaky MigrationSingleClientTest tests.

Revert of Disable flaky MigrationSingleClientTest tests. (patchset #1 id:1 of https://codereview.chromium.org/2353953002/ )

Reason for revert:
No need to disable these tests as the flakyness was fixed by https://codereview.chromium.org/2338213009

Original issue's description:
> Disable flaky MigrationSingleClientTest tests.
>
> These are reported as flaky. Though locally they fail every time?
>
> Disabling:
> - MigrationSingleClientTest.AllTypesAtOnce
> - MigrationSingleClientTest.AllTypesAtOnceTriggerNotification
> - MigrationSingleClientTest.AllTypesWithNigoriAtOnce
> - MigrationSingleClientTest.BookmarksPrefsBoth
> - MigrationSingleClientTest.BookmarksPrefsIndividually
> - MigrationSingleClientTest.NigoriOnly
> - MigrationSingleClientTest.PrefsNigoriBoth
> - MigrationSingleClientTest.PrefsOnlyModifyBookmark
> - MigrationSingleClientTest.PrefsOnlyModifyPref
> - MigrationSingleClientTest.PrefsOnlyTriggerNotification
>
> With this, *ALL* MigrationSingleClientTests that were not already
> disabled are disabled. This bug needs to be investigated and the tests
> re-enabled.
>
> BUG=648480
> NOTRY=True
> TBR=lgcheng,stevenjb,pavely
>
> Committed: https://crrev.com/76ad59ea95d48f29f5b8658d467d6323789f1b51
> Cr-Commit-Position: refs/heads/master@{#419757}

TBR=lgcheng@google.com,pavely@chromium.org,stevenjb@chromium.org,hbos@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=648480
Committed: https://crrev.com/f58e5fea14e496cc7bf2b4af814e1c4726b07f87
Cr-Commit-Position: refs/heads/master@{#419766}

[ymalik, 2016-09-20 15:14:56]

The CQ bit was checked by ymalik@chromium.org

[ymalik, 2016-09-20 15:14:57]

Created Revert of Disable flaky MigrationSingleClientTest tests.

[commit-bot: I haz the power, 2016-09-20 15:15:15]

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, 2016-09-20 15:16:16]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-20 15:19:09]

Description was changed from

==========
Revert of Disable flaky MigrationSingleClientTest tests. (patchset #1 id:1 of
https://codereview.chromium.org/2353953002/ )

Reason for revert:
No need to disable these tests as the flakyness was fixed by
https://codereview.chromium.org/2338213009

Original issue's description:
> Disable flaky MigrationSingleClientTest tests.
> 
> These are reported as flaky. Though locally they fail every time?
> 
> Disabling:
> - MigrationSingleClientTest.AllTypesAtOnce
> - MigrationSingleClientTest.AllTypesAtOnceTriggerNotification
> - MigrationSingleClientTest.AllTypesWithNigoriAtOnce
> - MigrationSingleClientTest.BookmarksPrefsBoth
> - MigrationSingleClientTest.BookmarksPrefsIndividually
> - MigrationSingleClientTest.NigoriOnly
> - MigrationSingleClientTest.PrefsNigoriBoth
> - MigrationSingleClientTest.PrefsOnlyModifyBookmark
> - MigrationSingleClientTest.PrefsOnlyModifyPref
> - MigrationSingleClientTest.PrefsOnlyTriggerNotification
> 
> With this, *ALL* MigrationSingleClientTests that were not already
> disabled are disabled. This bug needs to be investigated and the tests
> re-enabled.
> 
> BUG=648480
> NOTRY=True
> TBR=lgcheng,stevenjb,pavely
> 
> Committed: https://crrev.com/76ad59ea95d48f29f5b8658d467d6323789f1b51
> Cr-Commit-Position: refs/heads/master@{#419757}

TBR=lgcheng@google.com,pavely@chromium.org,stevenjb@chromium.org,hbos@chromiu...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=648480
==========

to

==========
Revert of Disable flaky MigrationSingleClientTest tests. (patchset #1 id:1 of
https://codereview.chromium.org/2353953002/ )

Reason for revert:
No need to disable these tests as the flakyness was fixed by
https://codereview.chromium.org/2338213009

Original issue's description:
> Disable flaky MigrationSingleClientTest tests.
>
> These are reported as flaky. Though locally they fail every time?
>
> Disabling:
> - MigrationSingleClientTest.AllTypesAtOnce
> - MigrationSingleClientTest.AllTypesAtOnceTriggerNotification
> - MigrationSingleClientTest.AllTypesWithNigoriAtOnce
> - MigrationSingleClientTest.BookmarksPrefsBoth
> - MigrationSingleClientTest.BookmarksPrefsIndividually
> - MigrationSingleClientTest.NigoriOnly
> - MigrationSingleClientTest.PrefsNigoriBoth
> - MigrationSingleClientTest.PrefsOnlyModifyBookmark
> - MigrationSingleClientTest.PrefsOnlyModifyPref
> - MigrationSingleClientTest.PrefsOnlyTriggerNotification
>
> With this, *ALL* MigrationSingleClientTests that were not already
> disabled are disabled. This bug needs to be investigated and the tests
> re-enabled.
>
> BUG=648480
> NOTRY=True
> TBR=lgcheng,stevenjb,pavely
>
> Committed: https://crrev.com/76ad59ea95d48f29f5b8658d467d6323789f1b51
> Cr-Commit-Position: refs/heads/master@{#419757}

TBR=lgcheng@google.com,pavely@chromium.org,stevenjb@chromium.org,hbos@chromiu...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=648480

Committed: https://crrev.com/f58e5fea14e496cc7bf2b4af814e1c4726b07f87
Cr-Commit-Position: refs/heads/master@{#419766}
==========

[commit-bot: I haz the power, 2016-09-20 15:19:10]

Patchset 1 (id:??) landed as
https://crrev.com/f58e5fea14e496cc7bf2b4af814e1c4726b07f87
Cr-Commit-Position: refs/heads/master@{#419766}