GitLab

SignAndStore method is moved out from DeviceSettingsService to OwnerSettingsService. It's still called by DeviceSettingsService via delegate, but later it will be invoked by OwnerSettingsService::Set().

BUG=230018
TEST=unit_tests:DeviceSettingsService*

Review URL: https://codereview.chromium.org/399613003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@284081 0039d316-1c4b-4281-b951-d872f2087c98