If policy for backup is present it should be sent to container as well.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5fe9eeb3e2cab79085daca98bab26a93793ad546

commit 5fe9eeb3e2cab79085daca98bab26a93793ad546
Author: vkuzkokov <vkuzkokov@chromium.org>
Date: Mon Jul 18 10:32:07 2016

Send setting for enabling Android backup to container.

BUG= 627109 

Review-Url: https://codereview.chromium.org/2126203002
Cr-Commit-Position: refs/heads/master@{#405972}

[modify] https://crrev.com/5fe9eeb3e2cab79085daca98bab26a93793ad546/chrome/browser/chromeos/arc/arc_settings_service.cc

Your change meets the bar and is auto-approved for M53 (branch: 2785)

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/67136956253ac0f224eb33e221815364391a9514

commit 67136956253ac0f224eb33e221815364391a9514
Author: Vladislav Kuzkokov <vkuzkokov@chromium.org>
Date: Tue Jul 26 13:21:15 2016

Send setting for enabling Android backup to container.

BUG= 627109 

Review-Url: https://codereview.chromium.org/2126203002
Cr-Commit-Position: refs/heads/master@{#405972}
(cherry picked from commit 5fe9eeb3e2cab79085daca98bab26a93793ad546)

Review URL: https://codereview.chromium.org/2181873003 .

Cr-Commit-Position: refs/branch-heads/2785@{#355}
Cr-Branched-From: 68623971be0cfc492a2cb0427d7f478e7b214c24-refs/heads/master@{#403382}

[modify] https://crrev.com/67136956253ac0f224eb33e221815364391a9514/chrome/browser/chromeos/arc/arc_settings_service.cc