[banshee/gtk3] SourceView: Add "new" keywords to silence warnings

[Bertrand Lorentz <blorentz src gnome org>]

commit 829db3561e8fe86699d84db000d6c932c3d8e3fc
Author: Bertrand Lorentz <bertrand lorentz gmail com>
Date:   Mon Jul 25 23:30:59 2011 +0200

    SourceView: Add "new" keywords to silence warnings

 .../Banshee.Sources.Gui/SourceView.cs              |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/Core/Banshee.ThickClient/Banshee.Sources.Gui/SourceView.cs b/src/Core/Banshee.ThickClient/Banshee.Sources.Gui/SourceView.cs
index 2780bc0..1132943 100644
--- a/src/Core/Banshee.ThickClient/Banshee.Sources.Gui/SourceView.cs
+++ b/src/Core/Banshee.ThickClient/Banshee.Sources.Gui/SourceView.cs
@@ -442,13 +442,13 @@ namespace Banshee.Sources.Gui
             QueueDraw ();
         }
 
-        internal void Expand (Source src)
+        internal new void Expand (Source src)
         {
             Expand (store.FindSource (src));
             src.Expanded = true;
         }
 
-        private void Expand (TreeIter iter)
+        private new void Expand (TreeIter iter)
         {
             using (var path = store.GetPath (iter)) {
                 ExpandRow (path, true);