A new authenticated connection evicts an old one.

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 fc6daaf957acf4bea2ba89f3b3a6bccd952eb72e..1a3799b3972eb8aaa3960ce24aec179a612dbac3 100644
--- a/remoting/host/chromoting_host.h
+++ b/remoting/host/chromoting_host.h
@@ -106,8 +106,8 @@ class ChromotingHost : public base::RefCountedThreadSafe<ChromotingHost>,
 
   ////////////////////////////////////////////////////////////////////////////
   // DesktopEnvironment::EventHandler implementations
-  virtual void LocalLoginSucceeded();
-  virtual void LocalLoginFailed();
+  virtual void LocalLoginSucceeded(protocol::ConnectionToClient* client);
+  virtual void LocalLoginFailed(protocol::ConnectionToClient* client);
 
   // Callback for ChromotingServer.
   void OnNewClientSession(
@@ -122,8 +122,8 @@ class ChromotingHost : public base::RefCountedThreadSafe<ChromotingHost>,
   protocol::HostStub* host_stub() const;
 
   // This setter is only used in unit test to simulate client connection.
-  void set_connection(protocol::ConnectionToClient* conn) {
-    connection_ = conn;
+  void add_connection(protocol::ConnectionToClient* conn) {
+    connections_.push_back(conn);
   }
 
  private:
@@ -167,9 +167,8 @@ class ChromotingHost : public base::RefCountedThreadSafe<ChromotingHost>,
 
   AccessVerifier access_verifier_;
 
-  // A ConnectionToClient manages the connectino to a remote client.
-  // TODO(hclam): Expand this to a list of clients.
-  scoped_refptr<protocol::ConnectionToClient> connection_;
+  // A ConnectionToClient manages the connection to a remote client.
+  std::vector<scoped_refptr<protocol::ConnectionToClient>> connections_;
 
   // Session manager for the host process.
   scoped_refptr<ScreenRecorder> recorder_;