Access Session::config() and Session::jid() on the correct thread only.

remoting/host/chromoting_host.h

Index: remoting/host/chromoting_host.h
diff --git a/remoting/host/chromoting_host.h b/remoting/host/chromoting_host.h
index 7b5cea57aba9798e078fc22d7707482e1f8155ac..3f3423305640388d9b8cae01a34a7d90c5233b7e 100644
--- a/remoting/host/chromoting_host.h
+++ b/remoting/host/chromoting_host.h
@@ -125,6 +125,11 @@ class ChromotingHost : public base::RefCountedThreadSafe<ChromotingHost>,
       protocol::Session* session,
       protocol::SessionManager::IncomingSessionResponse* response) OVERRIDE;
 
+  void AddAuthenticatedClient(
+      scoped_refptr<protocol::ConnectionToClient> connection,
+      const protocol::SessionConfig& config,
+      const std::string& jid);
+
   // Sets desired configuration for the protocol. Ownership of the
   // |config| is transferred to the object. Must be called before Start().
   void set_protocol_config(protocol::CandidateSessionConfig* config);