Move NegotiatingClientAuthentication creation to ChromotingClient.
For the new SPAKE2 authenticator we need to pass client_jid
to the authenticator. This wasn't possible previously because
NegotiatingClientAuthenticator was created before signaling is
connected. Moved NegotiatingClientAuthentication creation to
ChromotingClient.
BUG=589698
Committed: https://crrev.com/279bf7c76a3e0bfbbd28748d0d02fcead88f4436
Cr-Commit-Position: refs/heads/master@{#380779}
Review URL: https://codereview.chromium.org/1778023002
Cr-Commit-Position: refs/heads/master@{#380831}
12 files changed