[f-spot] Provide a protected ctor(IntPtr).

[Ruben Vermeersch <rubenv src gnome org>]

commit 03c3b57c949dd843b8bd4772c199b7ab9bcf2972
Author: Lorenzo Milesi <maxxer yetopen it>
Date:   Thu Jun 17 12:31:03 2010 +0200

    Provide a protected ctor(IntPtr).
    
    https://bugzilla.gnome.org/show_bug.cgi?id=565856

 src/TagSelectionWidget.cs   |    2 ++
 src/Widgets/SaneTreeView.cs |    2 ++
 2 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/TagSelectionWidget.cs b/src/TagSelectionWidget.cs
index 76c03a1..502c0da 100644
--- a/src/TagSelectionWidget.cs
+++ b/src/TagSelectionWidget.cs
@@ -522,6 +522,8 @@ namespace FSpot {
 		TreeViewColumn complete_column;
 		CellRendererText text_render;
 	
+		protected TagSelectionWidget (IntPtr raw) : base (raw) { }
+
 		// Constructor.
 		public TagSelectionWidget (TagStore tag_store)
 			: base (new TreeStore (typeof(uint), typeof(string)))
diff --git a/src/Widgets/SaneTreeView.cs b/src/Widgets/SaneTreeView.cs
index a1a9629..43613ed 100644
--- a/src/Widgets/SaneTreeView.cs
+++ b/src/Widgets/SaneTreeView.cs
@@ -21,6 +21,8 @@ namespace FSpot.Widgets
 	{
 		protected bool row_selected_on_button_down, ignore_button_release, drag_started;
 		
+		protected SaneTreeView (IntPtr raw) : base (raw) { }
+
 		public SaneTreeView (TreeStore store) : base (store)
 		{
 			Selection.Mode = SelectionMode.Multiple;