Send fake event when event_type is set to exit menu

ui/base/x/events_x.cc

 // Copyright (c) 2011 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/base/events.h"
 
+#include <X11/Xlib.h>
 #include <X11/extensions/XInput2.h>
 
 #include "base/logging.h"
 #include "ui/base/keycodes/keyboard_code_conversion_x.h"
 #include "ui/base/touch/touch_factory.h"
 #include "ui/gfx/point.h"
 
 namespace {
 
 // Scroll amount for each wheelscroll event. 53 is also the value used for GTK+.
@@ skipping 330 matching lines @@
                                   0.0);
   unsigned int deviceid =
       static_cast<XIDeviceEvent*>(native_event->xcookie.data)->sourceid;
   // Force is normalized to fall into [0, 1]
   if (!ui::TouchFactory::GetInstance()->NormalizeTouchParam(
       deviceid, ui::TouchFactory::TP_PRESSURE, &force))
     force = 0.0;
   return force;
 }
 
+base::NativeEvent CreateNoopEvent() {
+  static XEvent* noop = new XEvent();
+  noop->xclient.type = ClientMessage;
+  noop->xclient.display = NULL;
+  noop->xclient.window = None;
+  noop->xclient.message_type = 0;
+  noop->xclient.format = 0;
+  return noop;
+}
+
 }  // namespace ui