small fix for leaking the url bar XP in CreateToolbar. Part of the fix for bug 4883. approved for checking by chofmann.

webshell/tests/viewer/nsBrowserWindow.cpp

@@ -1343,12 +1343,8 @@ nsBrowserWindow::CreateToolBar(PRInt32 aWidth)
     widget->SetBackgroundColor(NS_RGB(255, 255, 255));
     PRUint32 size;
     mLocation->SetText("",size);
-    nsIWidget* widget = nsnull;
-	  if (NS_OK == mLocation->QueryInterface(kIWidgetIID,(void**)&widget))
-	  {
-      widget->EnableFileDrop(PR_TRUE);
-		  NS_RELEASE(widget);
-    }
+    widget->EnableFileDrop(PR_TRUE);
+	 NS_RELEASE(widget);
   }
 
   // Create and place throbber