ozone: evdev: Add gamepad support

ui/events/ozone/evdev/event_device_info.h

Index: ui/events/ozone/evdev/event_device_info.h
diff --git a/ui/events/ozone/evdev/event_device_info.h b/ui/events/ozone/evdev/event_device_info.h
index b4ddbcdad8de19b9fbdb189db4bfebe0f4a54fa7..9062b746cb33bc438e6461f7bb4da6f4c0e2a239 100644
--- a/ui/events/ozone/evdev/event_device_info.h
+++ b/ui/events/ozone/evdev/event_device_info.h
@@ -139,6 +139,9 @@ class EVENTS_OZONE_EVDEV_EXPORT EventDeviceInfo {
   // Determine whether there's a touchscreen on this device.
   bool HasTouchscreen() const;
 
+  // Determine whether there's a gamepad on this device.
+  bool HasGamepad() const;
+
   // The device type (internal or external.)
   InputDeviceType device_type() const { return device_type_; }