ozone: evdev: Add gamepad support

ui/events/ozone/evdev/event_device_info.h

 // Copyright 2013 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_EVENT_DEVICE_INFO_H_
 #define UI_EVENTS_OZONE_EVDEV_EVENT_DEVICE_INFO_H_
 
 #include <limits.h>
 #include <linux/input.h>
 #include <stddef.h>
@@ skipping 121 matching lines @@
 
   // Determine whether there's a touchpad on this device.
   bool HasTouchpad() const;
 
   // Determine whether there's a tablet on this device.
   bool HasTablet() const;
 
   // Determine whether there's a touchscreen on this device.
   bool HasTouchscreen() const;
 
+  // Determine whether there's a gamepad on this deivice.
+  bool HasGamepad() const;
+
   // The device type (internal or external.)
   InputDeviceType device_type() const { return device_type_; }
 
  private:
   enum class LegacyAbsoluteDeviceType {
     LADT_TOUCHPAD,
     LADT_TOUCHSCREEN,
     LADT_TABLET,
     LADT_NONE,
   };
@@ skipping 23 matching lines @@
 
   // Whether this is an internal or external device.
   InputDeviceType device_type_ = InputDeviceType::INPUT_DEVICE_UNKNOWN;
 
   DISALLOW_COPY_AND_ASSIGN(EventDeviceInfo);
 };
 
 }  // namspace ui
 
 #endif  // UI_EVENTS_OZONE_EVDEV_EVENT_DEVICE_INFO_H_