Cleanup LoginUtils.

Cleanup LoginUtils.
Theses methods don't need to be public.

BUG=TBD

Committed: https://crrev.com/edd46df85666b8b76bba7134cb29315faf706af5
Cr-Commit-Position: refs/heads/master@{#299096}

[Nikita (slow), 2014-10-09 15:36:05]

nkostylev@chromium.org changed reviewers:
+ alemate@chromium.org

[Alexander Alekseev, 2014-10-09 18:31:44]

The CQ bit was checked by alemate@chromium.org

[Alexander Alekseev, 2014-10-09 18:31:44]

lgtm

[commit-bot: I haz the power, 2014-10-09 18:34:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/641123002/1

[commit-bot: I haz the power, 2014-10-09 19:30:49]

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

[commit-bot: I haz the power, 2014-10-09 19:30:53]

Try jobs failed on following builders:
  linux_chromium_chromeos_rel_swarming on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[Nikita (slow), 2014-10-10 10:58:05]

LoginUtils::RestartToApplyPerSessionFlagsIfNeed() has to be public though
because it is called from ProfileImpl.

[Nikita (slow), 2014-10-10 11:28:04]

The CQ bit was checked by nkostylev@chromium.org

[commit-bot: I haz the power, 2014-10-10 11:28:24]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/641123002/180001

[commit-bot: I haz the power, 2014-10-10 12:10:20]

Committed patchset #2 (id:180001)

[commit-bot: I haz the power, 2014-10-10 12:11:05]

Patchset 2 (id:??) landed as
https://crrev.com/edd46df85666b8b76bba7134cb29315faf706af5
Cr-Commit-Position: refs/heads/master@{#299096}