Index: /trunk/src/VBox/Frontends/VirtualBox/src/medium/UIMediumEnumerator.h
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/medium/UIMediumEnumerator.h	(revision 48275)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/medium/UIMediumEnumerator.h	(revision 48276)
@@ -39,11 +39,11 @@
 
     /* Notifiers: Medium-operations stuff: */
-    void sigMediumCreated(QString strMediumID);
-    void sigMediumUpdated(QString strMediumID);
-    void sigMediumDeleted(QString strMediumID);
+    void sigMediumCreated(const QString &strMediumID);
+    void sigMediumUpdated(const QString &strMediumID);
+    void sigMediumDeleted(const QString &strMediumID);
 
     /* Notifiers: Medium-enumeration stuff: */
     void sigMediumEnumerationStarted();
-    void sigMediumEnumerated(QString strMediumID);
+    void sigMediumEnumerated(const QString &strMediumID);
     void sigMediumEnumerationFinished();