X11: Remove calls to XSelectInput

ui/events/platform/x11/x11_event_source.h

 // 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.
 
 #ifndef UI_EVENTS_PLATFORM_X11_X11_EVENT_SOURCE_H_
 #define UI_EVENTS_PLATFORM_X11_X11_EVENT_SOURCE_H_
 
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/macros.h"
 #include "ui/events/events_export.h"
 #include "ui/gfx/x/x11_types.h"
 
 using Time = unsigned long;
 using XEvent = union _XEvent;
 using XID = unsigned long;
 using XWindow = unsigned long;
 
 namespace ui {
 
 class X11HotplugEventHandler;
+class XScopedEventSelector;
 
 // Responsible for notifying X11EventSource when new XEvents are available and
 // processing/dispatching XEvents. Implementations will likely be a
 // PlatformEventSource.
 class X11EventSourceDelegate {
  public:
   X11EventSourceDelegate() = default;
 
   // Processes (if necessary) and handles dispatching XEvents.
   virtual void ProcessXEvent(XEvent* xevent) = 0;
@@ skipping 70 matching lines @@
   // The connection to the X11 server used to receive the events.
   XDisplay* display_;
 
   // The timestamp of the event being dispatched.
   Time event_timestamp_;
 
   // State necessary for UpdateLastSeenServerTime
   bool dummy_initialized_;
   XWindow dummy_window_;
   XAtom dummy_atom_;
+  std::unique_ptr<XScopedEventSelector> dummy_window_events_;
 
   // Keeps track of whether this source should continue to dispatch all the
   // available events.
   bool continue_stream_ = true;
 
   std::unique_ptr<X11HotplugEventHandler> hotplug_event_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(X11EventSource);
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_PLATFORM_X11_X11_EVENT_SOURCE_H_