Adds special support to the device manager for keyboards devices.

ui/events/ozone/evdev/event_factory_evdev.cc

Index: ui/events/ozone/evdev/event_factory_evdev.cc
diff --git a/ui/events/ozone/evdev/event_factory_evdev.cc b/ui/events/ozone/evdev/event_factory_evdev.cc
index 88ec979fb35f4f3a3809cfcbb61d479d164b4d14..fe6f99c93d1aaecad5fef69841c68654d6d2d576 100644
--- a/ui/events/ozone/evdev/event_factory_evdev.cc
+++ b/ui/events/ozone/evdev/event_factory_evdev.cc
@@ -260,9 +260,11 @@ void EventFactoryEvdev::NotifyHotplugEventObserver(
   std::vector<TouchscreenDevice> touchscreens;
   for (auto it = converters_.begin(); it != converters_.end(); ++it) {
     if (it->second->HasTouchscreen()) {
-      touchscreens.push_back(TouchscreenDevice(it->second->id(),
-                                               it->second->GetTouchscreenSize(),
-                                               false /* is_internal */));
+      touchscreens.push_back(TouchscreenDevice(
+          it->second->id(),
+          TouchscreenDeviceType::EXTERNAL,
+          "", /* Device name */
+          it->second->GetTouchscreenSize()));
     }
   }