A new authenticated connection evicts an old one.

remoting/host/client_session.h

Index: remoting/host/client_session.h
diff --git a/remoting/host/client_session.h b/remoting/host/client_session.h
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+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef REMOTING_HOST_CLIENT_SESSION_H_
+#define REMOTING_HOST_CLIENT_SESSION_H_
+
+#include "remoting/protocol/connection_to_client.h"
+#include "remoting/protocol/host_stub.h"
+
+namespace remoting {
+
+// A ClientSession keeps a reference to a connection to a client, and maintains
+// per-client state.
+class ClientSession : public protocol::HostStub,
+                      public base::RefCountedThreadSafe<ClientSession> {
+ public:
+  // Callback interface for passing events to the ChromotingHost.
+  class EventHandler {
+   public:
+    virtual ~EventHandler() {}
+
+    // Called to signal that local login has succeeded and ChromotingHost can
+    // proceed with the next step.
+    virtual void LocalLoginSucceeded(
+        scoped_refptr<protocol::ConnectionToClient> client) = 0;
+
+    // Called to signal that local login has failed.
+    virtual void LocalLoginFailed(
+        scoped_refptr<protocol::ConnectionToClient> client) = 0;
+  };
+
+  ClientSession(EventHandler* event_handler,
+                scoped_refptr<protocol::ConnectionToClient> connection);
+
+  // protocol::HostStub interface.
+  virtual void SuggestResolution(
+      const protocol::SuggestResolutionRequest* msg, Task* done);
+  virtual void BeginSessionRequest(
+      const protocol::LocalLoginCredentials* credentials, Task* done);
+
+  // Disconnect this client session.
+  void Disconnect();
+
+  protocol::ConnectionToClient* connection() const;
+
+ protected:
+  friend class base::RefCountedThreadSafe<ClientSession>;
+  ~ClientSession();
+
+ private:
+  EventHandler* event_handler_;
+  scoped_refptr<protocol::ConnectionToClient> connection_;
+
+  DISALLOW_COPY_AND_ASSIGN(ClientSession);
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_HOST_CLIENT_SESSION_H_