X11: Remove calls to XSelectInput

ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h

Index: ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h
diff --git a/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h b/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h
index 40933bc596479e6cd9e5a73b8fbe066ef83882fe..07e35cabb1abd6d4bfac08a3b561311d1aa6a4b6 100644
--- a/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h
+++ b/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h
@@ -32,6 +32,7 @@ class ImageSkiaRep;
 
 namespace ui {
 class EventHandler;
+class XScopedEventSelector;
 }
 
 namespace views {
@@ -270,6 +271,9 @@ class VIEWS_EXPORT DesktopWindowTreeHostX11
   XDisplay* xdisplay_;
   ::Window xwindow_;
 
+  // Events selected on |xwindow_|.
+  std::unique_ptr<ui::XScopedEventSelector> xwindow_events_;
+
   // The native root window.
   ::Window x_root_window_;