GitLab

Spake2Authenticator requires that local_id and remote_id are the same
on both ends of the connection, so JIDs need to be normalized to avoid
issues when one of the ends gets JID in a different case.

BUG=589698

Review URL: https://codereview.chromium.org/1803893002

Cr-Commit-Position: refs/heads/master@{#381559}