Revert of Temporarily remove unit tests which use real git and real filesystem.

Revert of Temporarily remove unit tests which use real git and real filesystem. (patchset #1 id:1 of https://codereview.chromium.org/2892463002/ )

Reason for revert:
Should be OK to run these tests again (https://bugs.chromium.org/p/chromium/issues/detail?id=722975#c10)

Original issue's description:
> Temporarily remove unit tests which use real git and real filesystem.
> 
> BUG=722975
> TBR=dpranke
> NOTRY=true
> 
> Review-Url: https://codereview.chromium.org/2892463002
> Cr-Commit-Position: refs/heads/master@{#472223}
> Committed: https://chromium.googlesource.com/chromium/src/+/02e0ec9c924364de9287e06255649674a75493d1

TBR=dmazzoni@chromium.org,dpranke@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=722975
Review-Url: https://codereview.chromium.org/2891443003
Cr-Commit-Position: refs/heads/master@{#472256}
Committed: https://chromium.googlesource.com/chromium/src/+/3948d50a08e75cd127eea4ae47267adeb1d945bf

[qyearsley, 2017-05-16 23:56:27]

The CQ bit was checked by qyearsley@chromium.org

[qyearsley, 2017-05-16 23:56:28]

Created Revert of Temporarily remove unit tests which use real git and real
filesystem.

[commit-bot: I haz the power, 2017-05-16 23:57:31]

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, 2017-05-16 23:58:07]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1494978987813930, "parent_rev":
"444db4b416dbc2ed7fed540cfbc0d6ec7774ed65", "commit_rev":
"3948d50a08e75cd127eea4ae47267adeb1d945bf"}

[commit-bot: I haz the power, 2017-05-16 23:58:22]

Description was changed from

==========
Revert of Temporarily remove unit tests which use real git and real filesystem.
(patchset #1 id:1 of https://codereview.chromium.org/2892463002/ )

Reason for revert:
Should be OK to run these tests again
(https://bugs.chromium.org/p/chromium/issues/detail?id=722975#c10)

Original issue's description:
> Temporarily remove unit tests which use real git and real filesystem.
> 
> BUG=722975
> TBR=dpranke
> NOTRY=true
> 
> Review-Url: https://codereview.chromium.org/2892463002
> Cr-Commit-Position: refs/heads/master@{#472223}
> Committed:
https://chromium.googlesource.com/chromium/src/+/02e0ec9c924364de9287e0625564...

TBR=dmazzoni@chromium.org,dpranke@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=722975
==========

to

==========
Revert of Temporarily remove unit tests which use real git and real filesystem.
(patchset #1 id:1 of https://codereview.chromium.org/2892463002/ )

Reason for revert:
Should be OK to run these tests again
(https://bugs.chromium.org/p/chromium/issues/detail?id=722975#c10)

Original issue's description:
> Temporarily remove unit tests which use real git and real filesystem.
> 
> BUG=722975
> TBR=dpranke
> NOTRY=true
> 
> Review-Url: https://codereview.chromium.org/2892463002
> Cr-Commit-Position: refs/heads/master@{#472223}
> Committed:
https://chromium.googlesource.com/chromium/src/+/02e0ec9c924364de9287e0625564...

TBR=dmazzoni@chromium.org,dpranke@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=722975

Review-Url: https://codereview.chromium.org/2891443003
Cr-Commit-Position: refs/heads/master@{#472256}
Committed:
https://chromium.googlesource.com/chromium/src/+/3948d50a08e75cd127eea4ae4726...
==========

[commit-bot: I haz the power, 2017-05-16 23:58:23]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/3948d50a08e75cd127eea4ae4726...

[qyearsley, 2017-05-25 23:41:44]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2908593004/ by qyearsley@chromium.org.

The reason for reverting is: These tests are failing again :-/

Possibly something changed with git on the bots again?

Disabling tests for now to avoid making all of the unrelated try jobs red....