class Size;
}
+namespace ui {
+class Event;
+}
+
+namespace views {
+class Button;
+}
+
namespace ash {
class OverflowBubble;
class ShelfButton;
// Returns the button space size.
int GetButtonSpacing();
+ // Wrapper for ShelfView::ButtonPressed.
+ void ButtonPressed(views::Button* sender, const ui::Event& event);
+
// Wrapper for ShelfView::SameDragType.
bool SameDragType(ShelfItemType typea, ShelfItemType typeb) const;