Revert of Disable flaky WebRtcMediaRecorderTest tests on TSAN

Revert of Disable flaky WebRtcMediaRecorderTest tests on TSAN (patchset #1 id:1 of https://codereview.chromium.org/2969613002/ )

Reason for revert:
The underlying problem should now be solved.

Original issue's description:
> Disable flaky WebRtcMediaRecorderTest tests on TSAN
> 
> Disable the following flaky WebRtcMediaRecorderTest tests on TSAN:
>   StartAndDataAvailable
>   IllegalStopThrowsDOMError
>   IllegalStartWhileRecordingThrowsDOMError
> 
> TBR=ossu
> BUG=736268
> 
> Review-Url: https://codereview.chromium.org/2969613002
> Cr-Commit-Position: refs/heads/master@{#483633}
> Committed: https://chromium.googlesource.com/chromium/src/+/8e7f9967cab8bb7eba9af7f29d63c69dff2c72b5

TBR=timloh@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=736268
Review-Url: https://codereview.chromium.org/2974643002
Cr-Commit-Position: refs/heads/master@{#484936}
Committed: https://chromium.googlesource.com/chromium/src/+/9d93c4adcaf03b9dadc1ac11ed9d29332efebf8a

[ossu-chromium, 2017-07-07 12:00:36]

The CQ bit was checked by ossu@chromium.org

[ossu-chromium, 2017-07-07 12:00:37]

Created Revert of Disable flaky WebRtcMediaRecorderTest tests on TSAN

[commit-bot: I haz the power, 2017-07-07 12:00:44]

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, 2017-07-07 12:00:45]

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

[commit-bot: I haz the power, 2017-07-07 12:00:45]

No L-G-T-M from a valid reviewer yet.
CQ run can only be started once the patch has received an L-G-T-M from a full
committer.
Even if an L-G-T-M may have been provided, it was from a non-committer,_not_ a
full super star committer.
Committers are members of the group "project-chromium-committers".
Note that this has nothing to do with OWNERS files.

[Guido Urdaneta, 2017-07-07 14:40:45]

guidou@chromium.org changed reviewers:
+ guidou@chromium.org

[Guido Urdaneta, 2017-07-07 14:40:46]

lgtm

[ossu-chromium, 2017-07-07 14:43:48]

The CQ bit was checked by ossu@chromium.org

[commit-bot: I haz the power, 2017-07-07 14:44:00]

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, 2017-07-07 15:33:33]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1499438628896750, "parent_rev":
"d1040a44743ed034ef14a910225a656b41022df4", "commit_rev":
"9d93c4adcaf03b9dadc1ac11ed9d29332efebf8a"}

[commit-bot: I haz the power, 2017-07-07 15:33:51]

Description was changed from

==========
Revert of Disable flaky WebRtcMediaRecorderTest tests on TSAN (patchset #1 id:1
of https://codereview.chromium.org/2969613002/ )

Reason for revert:
The underlying problem should now be solved.

Original issue's description:
> Disable flaky WebRtcMediaRecorderTest tests on TSAN
> 
> Disable the following flaky WebRtcMediaRecorderTest tests on TSAN:
>   StartAndDataAvailable
>   IllegalStopThrowsDOMError
>   IllegalStartWhileRecordingThrowsDOMError
> 
> TBR=ossu
> BUG=736268
> 
> Review-Url: https://codereview.chromium.org/2969613002
> Cr-Commit-Position: refs/heads/master@{#483633}
> Committed:
https://chromium.googlesource.com/chromium/src/+/8e7f9967cab8bb7eba9af7f29d63...

TBR=timloh@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=736268
==========

to

==========
Revert of Disable flaky WebRtcMediaRecorderTest tests on TSAN (patchset #1 id:1
of https://codereview.chromium.org/2969613002/ )

Reason for revert:
The underlying problem should now be solved.

Original issue's description:
> Disable flaky WebRtcMediaRecorderTest tests on TSAN
> 
> Disable the following flaky WebRtcMediaRecorderTest tests on TSAN:
>   StartAndDataAvailable
>   IllegalStopThrowsDOMError
>   IllegalStartWhileRecordingThrowsDOMError
> 
> TBR=ossu
> BUG=736268
> 
> Review-Url: https://codereview.chromium.org/2969613002
> Cr-Commit-Position: refs/heads/master@{#483633}
> Committed:
https://chromium.googlesource.com/chromium/src/+/8e7f9967cab8bb7eba9af7f29d63...

TBR=timloh@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=736268

Review-Url: https://codereview.chromium.org/2974643002
Cr-Commit-Position: refs/heads/master@{#484936}
Committed:
https://chromium.googlesource.com/chromium/src/+/9d93c4adcaf03b9dadc1ac11ed9d...
==========

[commit-bot: I haz the power, 2017-07-07 15:33:54]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/9d93c4adcaf03b9dadc1ac11ed9d...