Revert of Disable SiteInstanceTest.* under Dr. Memory.

Revert of Disable SiteInstanceTest.* under Dr. Memory. (patchset #1 id:1 of https://codereview.chromium.org/2090393002/ )

Reason for revert:
Reverted https://codereview.chromium.org/2045363002/.

Original issue's description:
> Disable SiteInstanceTest.* under Dr. Memory.
>
> They are failing.
>
> BUG=622793
> TBR=nick@chromium.org
>
> Committed: https://chromium.googlesource.com/chromium/src/+/8e6872f8f8b89bb49bda37577c7e0800ebee2488

TBR=nick@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=622793
Committed: https://crrev.com/31189d3191c823005b7d09f980953195ccf66765
Cr-Commit-Position: refs/heads/master@{#401772}

[Reilly Grant (use Gerrit), 2016-06-24 01:25:20]

The CQ bit was checked by reillyg@chromium.org

[Reilly Grant (use Gerrit), 2016-06-24 01:25:20]

Created Revert of Disable SiteInstanceTest.* under Dr. Memory.

[commit-bot: I haz the power, 2016-06-24 01:26:25]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2099573002/1

[commit-bot: I haz the power, 2016-06-24 01:27:06]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-24 01:30:14]

Description was changed from

==========
Revert of Disable SiteInstanceTest.* under Dr. Memory. (patchset #1 id:1 of
https://codereview.chromium.org/2090393002/ )

Reason for revert:
Reverted https://codereview.chromium.org/2045363002/.

Original issue's description:
> Disable SiteInstanceTest.* under Dr. Memory.
> 
> They are failing.
> 
> BUG=622793
> TBR=nick@chromium.org
> 
> Committed:
https://chromium.googlesource.com/chromium/src/+/8e6872f8f8b89bb49bda37577c7e...

TBR=nick@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=622793
==========

to

==========
Revert of Disable SiteInstanceTest.* under Dr. Memory. (patchset #1 id:1 of
https://codereview.chromium.org/2090393002/ )

Reason for revert:
Reverted https://codereview.chromium.org/2045363002/.

Original issue's description:
> Disable SiteInstanceTest.* under Dr. Memory.
>
> They are failing.
>
> BUG=622793
> TBR=nick@chromium.org
>
> Committed:
https://chromium.googlesource.com/chromium/src/+/8e6872f8f8b89bb49bda37577c7e...

TBR=nick@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=622793

Committed: https://crrev.com/31189d3191c823005b7d09f980953195ccf66765
Cr-Commit-Position: refs/heads/master@{#401772}
==========

[commit-bot: I haz the power, 2016-06-24 01:30:15]

Patchset 1 (id:??) landed as
https://crrev.com/31189d3191c823005b7d09f980953195ccf66765
Cr-Commit-Position: refs/heads/master@{#401772}