S60: Provide a MessageBox for starting serial communication as well.

Generalize the concept of the Bluetooth starter, extract base class
BaseCommunicationStarter that can be used to start a serial communication
without further resources (listener) as well. Introduce convenience
functions for both types.

Note: This will only work for COM-ports that are not used otherwise
by the operating system.

src/plugins/debugger/gdb/s60debuggerbluetoothstarter.cpp

@@ -30,6 +30,7 @@
 #include "s60debuggerbluetoothstarter.h"
 #include "bluetoothlistener.h"
 #include "debuggermanager.h"
+#include "trkoptions.h"
 
 namespace Debugger {
 namespace Internal {
@@ -48,5 +49,24 @@ trk::BluetoothListener *S60DebuggerBluetoothStarter::createListener()
     return rc;
 }
 
+trk::PromptStartCommunicationResult
+S60DebuggerBluetoothStarter::startCommunication(const TrkDevicePtr &trkDevice,
+                                                 const QString &device,
+                                                 int communicationType,
+                                                 QWidget *msgBoxParent,
+                                                 QString *errorMessage)
+{
+    // Bluetooth?
+    if (communicationType == TrkOptions::BlueTooth) {
+        S60DebuggerBluetoothStarter bluetoothStarter(trkDevice);
+        bluetoothStarter.setDevice(device);
+        return trk::promptStartBluetooth(bluetoothStarter, msgBoxParent, errorMessage);
+    }
+    // Serial
+    BaseCommunicationStarter serialStarter(trkDevice);
+    serialStarter.setDevice(device);
+    return trk::promptStartSerial(serialStarter, msgBoxParent, errorMessage);
+}
+
 } // namespace Internal
 } // namespace Debugger