Move all event related devices from ui/events/ to ui/events/devices/

ui/events/input_device.h

-// Copyright 2014 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_INPUT_DEVICE_H_
-#define UI_EVENTS_INPUT_DEVICE_H_
-
-#include <string>
-
-#include "ui/events/events_base_export.h"
-
-namespace ui {
-
-enum InputDeviceType {
-  INPUT_DEVICE_INTERNAL,  // Internally connected input device.
-  INPUT_DEVICE_EXTERNAL,  // Known externally connected input device.
-  INPUT_DEVICE_UNKNOWN,   // Device that may or may not be an external device.
-};
-
-// Represents an input device state.
-struct EVENTS_BASE_EXPORT InputDevice {
-  static const unsigned int kInvalidId;
-
-  // Creates an invalid input device.
-  InputDevice();
-
-  InputDevice(unsigned int id, InputDeviceType type, const std::string& name);
-  virtual ~InputDevice();
-
-  // ID of the device. This ID is unique between all input devices.
-  unsigned int id;
-
-  // The type of the input device.
-  InputDeviceType type;
-
-  // Name of the device.
-  std::string name;
-};
-
-}  // namespace ui
-
-#endif  // UI_EVENTS_INPUT_DEVICE_H_