Revert of Clears GuestModeEnabled and AddPersonEnabled user prefs if MD settings is enabled

Revert of Clears GuestModeEnabled and AddPersonEnabled user prefs if MD settings is enabled (patchset #4 id:60001 of https://codereview.chromium.org/2207003002/ )

Reason for revert:
Reverting this CL because it breaks compile on the following bot: https://build.chromium.org/p/chromium.gpu/builders/GPU%20Mac%20Builder/builds/66935

Original issue's description:
> Clears GuestModeEnabled and AddPersonEnabled user prefs if MD settings is enabled.
>
> MD settings gets rid of the checkboxes that enabled browsing as guest and adding new profiles. This CL clears the two prefs previously set by users. This should have no effect if the prefs are set by policy.
>
> This logic can be removed once all users' prefs are cleared
>
> BUG=630100
>
> Committed: https://crrev.com/8c440d2c549779305eb5439ae451158e694b5214
> Cr-Commit-Position: refs/heads/master@{#410105}

TBR=rogerta@chromium.org,rkaplow@chromium.org,michaelpg@chromium.org,mahmadi@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=630100
Committed: https://crrev.com/c14818cae6553f32e6c9cb756e58d0831126e4aa
Cr-Commit-Position: refs/heads/master@{#410111}

[anthonyvd, 2016-08-05 18:12:30]

The CQ bit was checked by anthonyvd@chromium.org

[anthonyvd, 2016-08-05 18:12:31]

Created Revert of Clears GuestModeEnabled and AddPersonEnabled user prefs if MD
settings is enabled

[commit-bot: I haz the power, 2016-08-05 18:12:55]

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, 2016-08-05 18:14:02]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-05 18:16:10]

Description was changed from

==========
Revert of Clears GuestModeEnabled and AddPersonEnabled user prefs if MD settings
is enabled (patchset #4 id:60001 of https://codereview.chromium.org/2207003002/
)

Reason for revert:
Reverting this CL because it breaks compile on the following bot:
https://build.chromium.org/p/chromium.gpu/builders/GPU%20Mac%20Builder/builds...

Original issue's description:
> Clears GuestModeEnabled and AddPersonEnabled user prefs if MD settings is
enabled.
> 
> MD settings gets rid of the checkboxes that enabled browsing as guest and
adding new profiles. This CL clears the two prefs previously set by users. This
should have no effect if the prefs are set by policy.
> 
> This logic can be removed once all users' prefs are cleared
> 
> BUG=630100
> 
> Committed: https://crrev.com/8c440d2c549779305eb5439ae451158e694b5214
> Cr-Commit-Position: refs/heads/master@{#410105}

TBR=rogerta@chromium.org,rkaplow@chromium.org,michaelpg@chromium.org,mahmadi@...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=630100
==========

to

==========
Revert of Clears GuestModeEnabled and AddPersonEnabled user prefs if MD settings
is enabled (patchset #4 id:60001 of https://codereview.chromium.org/2207003002/
)

Reason for revert:
Reverting this CL because it breaks compile on the following bot:
https://build.chromium.org/p/chromium.gpu/builders/GPU%20Mac%20Builder/builds...

Original issue's description:
> Clears GuestModeEnabled and AddPersonEnabled user prefs if MD settings is
enabled.
>
> MD settings gets rid of the checkboxes that enabled browsing as guest and
adding new profiles. This CL clears the two prefs previously set by users. This
should have no effect if the prefs are set by policy.
>
> This logic can be removed once all users' prefs are cleared
>
> BUG=630100
>
> Committed: https://crrev.com/8c440d2c549779305eb5439ae451158e694b5214
> Cr-Commit-Position: refs/heads/master@{#410105}

TBR=rogerta@chromium.org,rkaplow@chromium.org,michaelpg@chromium.org,mahmadi@...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=630100

Committed: https://crrev.com/c14818cae6553f32e6c9cb756e58d0831126e4aa
Cr-Commit-Position: refs/heads/master@{#410111}
==========

[commit-bot: I haz the power, 2016-08-05 18:16:11]

Patchset 1 (id:??) landed as
https://crrev.com/c14818cae6553f32e6c9cb756e58d0831126e4aa
Cr-Commit-Position: refs/heads/master@{#410111}