GitLab

BUG=136396
TEST=New VariationsServiceTest.StoreSeed and VariationsServiceTest.LoadSeed tests


Review URL: https://chromiumcodereview.appspot.com/10764005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@145980 0039d316-1c4b-4281-b951-d872f2087c98