X11: Remove calls to XSelectInput

ui/views/test/x11_property_change_waiter.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/test/x11_property_change_waiter.h"
 
 #include <X11/Xlib.h>
 
 #include "base/run_loop.h"
+#include "ui/base/x/x11_window_event_manager.h"
 #include "ui/events/platform/platform_event_source.h"
 #include "ui/events/platform/scoped_event_dispatcher.h"
 #include "ui/gfx/x/x11_atom_cache.h"
 
 namespace views {
 
 X11PropertyChangeWaiter::X11PropertyChangeWaiter(XID window,
                                                  const char* property)
-    : x_window_(window),
-      property_(property),
-      wait_(true),
-      old_event_mask_(0) {
+    : x_window_(window), property_(property), wait_(true) {
   Display* display = gfx::GetXDisplay();
 
   // Ensure that we are listening to PropertyNotify events for |window|. This
   // is not the case for windows which were not created by
   // DesktopWindowTreeHostX11.
-  XWindowAttributes attributes;
-  XGetWindowAttributes(display, x_window_, &attributes);
-  old_event_mask_ = attributes.your_event_mask;
-  XSelectInput(display, x_window_, old_event_mask_ | PropertyChangeMask);
+  x_window_events_.reset(
+      new ui::XScopedEventSelector(x_window_, PropertyChangeMask));
 
   const char* kAtomsToCache[] = { property, NULL };
   atom_cache_.reset(new ui::X11AtomCache(display, kAtomsToCache));
 
   // Override the dispatcher so that we get events before
   // DesktopWindowTreeHostX11 does. We must do this because
   // DesktopWindowTreeHostX11 stops propagation.
   dispatcher_ =
       ui::PlatformEventSource::GetInstance()->OverrideDispatcher(this);
 }
 
-X11PropertyChangeWaiter::~X11PropertyChangeWaiter() {
-  XSelectInput(gfx::GetXDisplay(), x_window_, old_event_mask_);
-}
+X11PropertyChangeWaiter::~X11PropertyChangeWaiter() {}
 
 void X11PropertyChangeWaiter::Wait() {
   if (!wait_)
     return;
 
   base::RunLoop run_loop;
   quit_closure_ = run_loop.QuitClosure();
   run_loop.Run();
 
   dispatcher_.reset();
@@ skipping 20 matching lines @@
     return ui::POST_DISPATCH_PERFORM_DEFAULT;
   }
 
   wait_ = false;
   if (!quit_closure_.is_null())
     quit_closure_.Run();
   return ui::POST_DISPATCH_PERFORM_DEFAULT;
 }
 
 }  // namespace views