Added a using

Somehow removed too much.

src/AddIns/Analysis/Profiler/Frontend/Controls/QueryView.xaml.cs

@@ -10,6 +10,7 @@ using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Documents;
 using System.Windows.Input;
+using ICSharpCode.Profiler.Controller;
 using ICSharpCode.Profiler.Controller.Data;
 using ICSharpCode.Profiler.Controller.Queries;