Revert of [Sync] Remove periodic sync for Chrome for Android

Revert of [Sync] Remove periodic sync for Chrome for Android (patchset #2 id:20001 of https://codereview.chromium.org/1148613002/)

Reason for revert:
seems to break the build
https://build.chromium.org/p/chromium/builders/Android/builds/40042

Original issue's description:
> [Sync] Remove periodic sync for Chrome for Android
>
> updateAccount() is always called on startup with the signed in account,
> so the removePeriodicSync() call will be hit even for already signed in
> users when the app restarts.
>
> BUG=480688
>
> Committed: https://crrev.com/20989a55f294c1b1643cbc2b80bf083de1dd7e36
> Cr-Commit-Position: refs/heads/master@{#330588}

TBR=nyquist@chromium.org,maxbogue@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=480688
Committed: https://crrev.com/d98a8607394ca879f251a6be7e721a2b7a0b111c
Cr-Commit-Position: refs/heads/master@{#330592}

[sgurun-gerrit only, 2015-05-19 20:21:08]

Created Revert of [Sync] Remove periodic sync for Chrome for Android

[commit-bot: I haz the power, 2015-05-19 20:23:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1135113006/1

[commit-bot: I haz the power, 2015-05-19 20:25:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-19 20:25:50]

Patchset 1 (id:??) landed as
https://crrev.com/d98a8607394ca879f251a6be7e721a2b7a0b111c
Cr-Commit-Position: refs/heads/master@{#330592}