Remote RDP sessions, rather than the console, if curtain-mode is configured.

remoting/host/daemon_process.cc

Index: remoting/host/daemon_process.cc
diff --git a/remoting/host/daemon_process.cc b/remoting/host/daemon_process.cc
index 8c7cf67c7a6643dbc0d20e9d27d11f7d73fd8a29..1a601902c20453df9c41417d8e589740adcf5451 100644
--- a/remoting/host/daemon_process.cc
+++ b/remoting/host/daemon_process.cc
@@ -174,6 +174,9 @@ void DaemonProcess::CreateDesktopSession(int terminal_id,
                                          bool virtual_terminal) {
   DCHECK(caller_task_runner()->BelongsToCurrentThread());
 
+  // Terminal IDs cannot be reused. Update the expected next terminal ID.
+  next_terminal_id_ = std::max(next_terminal_id_, terminal_id + 1);
+
   // Validate the supplied terminal ID. An attempt to create a desktop session
   // with an ID that could possibly have been allocated already is considered
   // a protocol error and the network process will be restarted.
@@ -202,18 +205,15 @@ void DaemonProcess::CreateDesktopSession(int terminal_id,
   // Create the desktop session.
   scoped_ptr<DesktopSession> session = DoCreateDesktopSession(
       terminal_id, params, virtual_terminal);
-  if (session) {
-    VLOG(1) << "Daemon: opened desktop session " << terminal_id;
-    desktop_sessions_.push_back(session.release());
-  } else {
+  if (!session) {
     LOG(ERROR) << "Failed to create a desktop session.";
     SendToNetwork(
         new ChromotingDaemonNetworkMsg_TerminalDisconnected(terminal_id));
     return;
   }
 
-  // Update the expected terminal ID.
-  next_terminal_id_ = std::max(next_terminal_id_, terminal_id + 1);
+  VLOG(1) << "Daemon: opened desktop session " << terminal_id;
+  desktop_sessions_.push_back(session.release());
 }
 
 void DaemonProcess::CrashNetworkProcess(