evdev: Support device hotplug with udev

ui/events/ozone/evdev/scoped_udev.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_OZONE_EVDEV_SCOPED_UDEV_H_
 #define UI_EVENTS_OZONE_EVDEV_SCOPED_UDEV_H_
 
 #include <libudev.h>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 19 matching lines @@
 
 // Scoped struct udev_enumerate.
 struct UdevEnumerateDeleter {
   void operator()(struct udev_enumerate* udev_enumerate) {
     udev_enumerate_unref(udev_enumerate);
   }
 };
 typedef scoped_ptr<struct udev_enumerate, UdevEnumerateDeleter>
     scoped_udev_enumerate;
 
+// Scoped struct udev_monitor.
+struct UdevMonitorDeleter {
+  void operator()(struct udev_monitor* udev_monitor) {
+    udev_monitor_unref(udev_monitor);
+  }
+};
+typedef scoped_ptr<struct udev_monitor, UdevMonitorDeleter> scoped_udev_monitor;
+
 }  // namespace ui
 
 #endif  // UI_EVENTS_OZONE_EVDEV_SCOPED_UDEV_H_