Add generic mapping for gamepad

ui/events/ozone/evdev/gamepad_event_converter_evdev.h

 // Copyright 2017 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_GAMEPAD_EVENT_CONVERTER_EVDEV_H_
 #define UI_EVENTS_OZONE_GAMEPAD_EVENT_CONVERTER_EVDEV_H_
 
 #include <vector>
 
 #include "base/files/file_path.h"
@@ skipping 89 matching lines @@
   };
 
   Axis axes_[ABS_CNT];
 
   // These values keeps the state of previous hat.
   bool last_hat_left_press_;
   bool last_hat_right_press_;
   bool last_hat_up_press_;
   bool last_hat_down_press_;
 
-  GamepadMapper mapper_;
+  GamepadMapper* mapper_;

[spang, 2017/06/01 05:08:12]

std::unique_ptr<>

[jkwang, 2017/06/02 22:03:51]

Done.

 
   // Input device file descriptor.
   ScopedInputDevice input_device_fd_;
 
   // Callbacks for dispatching events.
   DeviceEventDispatcherEvdev* dispatcher_;
 
   DISALLOW_COPY_AND_ASSIGN(GamepadEventConverterEvdev);
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_OZONE_GAMEPAD_EVENT_CONVERTER_EVDEV_H_