rAc i18n: implement storage interface for libaddressinput

BUG=325539
TBR=thakis@chromium.org

Review URL: https://codereview.chromium.org/98623005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242803 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 242803