BToolbar: move into BPrivate namespace, as it's not public yet

src/apps/showimage/ShowImageWindow.h

@@ -11,6 +11,7 @@
 #define SHOW_IMAGE_WINDOW_H
 
 
+#include <Toolbar.h>
 #include <Window.h>
 
 #include "ImageFileNavigator.h"
@@ -27,7 +28,6 @@ class BScrollView;
 class ProgressWindow;
 class ShowImageView;
 class ShowImageStatusView;
-class BToolbar;
 
 
 // public message constants

src/kits/shared/Toolbar.cpp

@@ -10,6 +10,10 @@
 #include <SeparatorView.h>
 #include <SpaceLayoutItem.h>
 
+
+namespace BPrivate {
+
+
 class LockableButton: public BButton {
 public:
 			LockableButton(const char* name, const char* label,
@@ -196,3 +200,5 @@ BToolbar::_HideToolTips() const
 		view->HideToolTip();
 }
 
+
+} // namespace BPrivate