Revert of Drop third_party/swiftshader/ from .gitignore

Revert of Drop third_party/swiftshader/ from .gitignore (patchset #1 id:1 of https://codereview.chromium.org/2224093003/ )

Reason for revert:
This was re-added to DEPS and is now showing up as untracked again.

Original issue's description:
> Drop third_party/swiftshader/ from .gitignore
>
> It's no longer in DEPS, and its precense in .gitignore may be why it's
> still left in the checkout causing checklicenses failures.
>
> BUG=635880
> TBR=stevenjb@chromium.org
>
> Committed: https://chromium.googlesource.com/chromium/src/+/341fac67de9500a95d8ed16545a9b0e1f859991d

TBR=stevenjb@chromium.org,capn@chromium.org,sugoi@chromium.org,foolip@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=635880
Committed: https://crrev.com/924e6f4db66fdeac8f95c9cb04e671281604b9ea
Cr-Commit-Position: refs/heads/master@{#412160}

[Peter Kasting, 2016-08-16 03:12:16]

The CQ bit was checked by pkasting@chromium.org

[Peter Kasting, 2016-08-16 03:12:17]

Created Revert of Drop third_party/swiftshader/ from .gitignore

[commit-bot: I haz the power, 2016-08-16 03:12:37]

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, 2016-08-16 03:53:30]

Description was changed from

==========
Revert of Drop third_party/swiftshader/ from .gitignore (patchset #1 id:1 of
https://codereview.chromium.org/2224093003/ )

Reason for revert:
This was re-added to DEPS and is now showing up as untracked again.

Original issue's description:
> Drop third_party/swiftshader/ from .gitignore
> 
> It's no longer in DEPS, and its precense in .gitignore may be why it's
> still left in the checkout causing checklicenses failures.
> 
> BUG=635880
> TBR=stevenjb@chromium.org
> 
> Committed:
https://chromium.googlesource.com/chromium/src/+/341fac67de9500a95d8ed16545a9...

TBR=stevenjb@chromium.org,capn@chromium.org,sugoi@chromium.org,foolip@chromiu...
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=635880
==========

to

==========
Revert of Drop third_party/swiftshader/ from .gitignore (patchset #1 id:1 of
https://codereview.chromium.org/2224093003/ )

Reason for revert:
This was re-added to DEPS and is now showing up as untracked again.

Original issue's description:
> Drop third_party/swiftshader/ from .gitignore
> 
> It's no longer in DEPS, and its precense in .gitignore may be why it's
> still left in the checkout causing checklicenses failures.
> 
> BUG=635880
> TBR=stevenjb@chromium.org
> 
> Committed:
https://chromium.googlesource.com/chromium/src/+/341fac67de9500a95d8ed16545a9...

TBR=stevenjb@chromium.org,capn@chromium.org,sugoi@chromium.org,foolip@chromiu...
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=635880
==========

[commit-bot: I haz the power, 2016-08-16 03:53:31]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-16 03:55:41]

Description was changed from

==========
Revert of Drop third_party/swiftshader/ from .gitignore (patchset #1 id:1 of
https://codereview.chromium.org/2224093003/ )

Reason for revert:
This was re-added to DEPS and is now showing up as untracked again.

Original issue's description:
> Drop third_party/swiftshader/ from .gitignore
> 
> It's no longer in DEPS, and its precense in .gitignore may be why it's
> still left in the checkout causing checklicenses failures.
> 
> BUG=635880
> TBR=stevenjb@chromium.org
> 
> Committed:
https://chromium.googlesource.com/chromium/src/+/341fac67de9500a95d8ed16545a9...

TBR=stevenjb@chromium.org,capn@chromium.org,sugoi@chromium.org,foolip@chromiu...
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=635880
==========

to

==========
Revert of Drop third_party/swiftshader/ from .gitignore (patchset #1 id:1 of
https://codereview.chromium.org/2224093003/ )

Reason for revert:
This was re-added to DEPS and is now showing up as untracked again.

Original issue's description:
> Drop third_party/swiftshader/ from .gitignore
>
> It's no longer in DEPS, and its precense in .gitignore may be why it's
> still left in the checkout causing checklicenses failures.
>
> BUG=635880
> TBR=stevenjb@chromium.org
>
> Committed:
https://chromium.googlesource.com/chromium/src/+/341fac67de9500a95d8ed16545a9...

TBR=stevenjb@chromium.org,capn@chromium.org,sugoi@chromium.org,foolip@chromiu...
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=635880

Committed: https://crrev.com/924e6f4db66fdeac8f95c9cb04e671281604b9ea
Cr-Commit-Position: refs/heads/master@{#412160}
==========

[commit-bot: I haz the power, 2016-08-16 03:55:42]

Patchset 1 (id:??) landed as
https://crrev.com/924e6f4db66fdeac8f95c9cb04e671281604b9ea
Cr-Commit-Position: refs/heads/master@{#412160}