Revert of Remove WallpaperManager dependency on Cryptohome.

Revert of Remove WallpaperManager dependency on Cryptohome. (patchset #7 id:120001 of https://codereview.chromium.org/1886653002/ )

Reason for revert:
crbug.com/603655

Original issue's description:
> Remove WallpaperManager dependency on Cryptohome.
>
> This Cl adds wallpaper file names hashing to WallpaperManager itself,
> removing dependency on cryptohome. No more asynchronous calls.
>
> BUG=462823
> TEST=manual
>
> Committed: https://crrev.com/81e10078a524522e862dd33ebdceaf64f4ebeba1
> Cr-Commit-Position: refs/heads/master@{#387235}

TBR=dkrahn@chromium.org,bshe@chromium.org,alemate@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=462823
Committed: https://crrev.com/180168420f3253d9dedb528b2e14fb9d01739726
Cr-Commit-Position: refs/heads/master@{#387443}

[ilja, 2016-04-14 21:15:40]

Created Revert of Remove WallpaperManager dependency on Cryptohome.

[commit-bot: I haz the power, 2016-04-14 21:16:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1887983005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1887983005/1

[commit-bot: I haz the power, 2016-04-14 21:16:07]

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

[commit-bot: I haz the power, 2016-04-14 21:16:08]

No L-G-T-M from a valid reviewer yet. 
CQ run can only be started by full committers or once the patch has
received an L-G-T-M from a full committer.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[hshi1, 2016-04-14 21:19:56]

hshi@chromium.org changed reviewers:
+ hshi@chromium.org

[hshi1, 2016-04-14 21:19:57]

lgtm

[Alexander Alekseev, 2016-04-14 22:00:18]

lgtm

[ilja, 2016-04-14 22:14:04]

The CQ bit was checked by ihf@chromium.org

[commit-bot: I haz the power, 2016-04-14 22:14:46]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1887983005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1887983005/1

[commit-bot: I haz the power, 2016-04-14 22:15:33]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-14 22:18:48]

Description was changed from

==========
Revert of Remove WallpaperManager dependency on Cryptohome. (patchset #7
id:120001 of https://codereview.chromium.org/1886653002/ )

Reason for revert:
crbug.com/603655

Original issue's description:
> Remove WallpaperManager dependency on Cryptohome.
> 
> This Cl adds wallpaper file names hashing to WallpaperManager itself,
> removing dependency on cryptohome. No more asynchronous calls.
> 
> BUG=462823
> TEST=manual
> 
> Committed: https://crrev.com/81e10078a524522e862dd33ebdceaf64f4ebeba1
> Cr-Commit-Position: refs/heads/master@{#387235}

TBR=dkrahn@chromium.org,bshe@chromium.org,alemate@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=462823
==========

to

==========
Revert of Remove WallpaperManager dependency on Cryptohome. (patchset #7
id:120001 of https://codereview.chromium.org/1886653002/ )

Reason for revert:
crbug.com/603655

Original issue's description:
> Remove WallpaperManager dependency on Cryptohome.
>
> This Cl adds wallpaper file names hashing to WallpaperManager itself,
> removing dependency on cryptohome. No more asynchronous calls.
>
> BUG=462823
> TEST=manual
>
> Committed: https://crrev.com/81e10078a524522e862dd33ebdceaf64f4ebeba1
> Cr-Commit-Position: refs/heads/master@{#387235}

TBR=dkrahn@chromium.org,bshe@chromium.org,alemate@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=462823

Committed: https://crrev.com/180168420f3253d9dedb528b2e14fb9d01739726
Cr-Commit-Position: refs/heads/master@{#387443}
==========

[commit-bot: I haz the power, 2016-04-14 22:18:49]

Patchset 1 (id:??) landed as
https://crrev.com/180168420f3253d9dedb528b2e14fb9d01739726
Cr-Commit-Position: refs/heads/master@{#387443}