ozone: evdev: Add gamepad support

ui/events/ozone/events_ozone.cc

Index: ui/events/ozone/events_ozone.cc
diff --git a/ui/events/ozone/events_ozone.cc b/ui/events/ozone/events_ozone.cc
index 1200cb3de612910bb85eb26e38e1d1ce3e3ab6b5..d07cf36056d874948cff1118faf27b733c47f971 100644
--- a/ui/events/ozone/events_ozone.cc
+++ b/ui/events/ozone/events_ozone.cc
@@ -30,6 +30,8 @@ void DispatchEventFromNativeUiEvent(const base::NativeEvent& native_event,
     callback.Run(native_ui_event);
     // TODO(mohsen): Use the same pattern for scroll/touch/wheel events.
     // Apparently, there is no need for them to wrap the |native_event|.
+  } else if (native_ui_event->IsGamepadEvent()) {
+    callback.Run(native_ui_event);
   } else {
     NOTREACHED();
   }