Sync ui/events to chromium @ https://codereview.chromium.org/1210203002

ui/events/touchscreen_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_TOUCHSCREEN_DEVICE_H_
-#define UI_EVENTS_TOUCHSCREEN_DEVICE_H_
-
-#include "ui/events/events_base_export.h"
-#include "ui/gfx/geometry/size.h"
-
-namespace ui {
-
-// Represents a Touchscreen device state.
-struct EVENTS_BASE_EXPORT TouchscreenDevice {
-  static const int kInvalidId;
-
-  TouchscreenDevice(int id, const gfx::Size& size, bool is_internal);
-
-  // ID of the touch screen. This ID must uniquely identify the touch screen.
-  int id;
-
-  // Size of the touch screen area.
-  gfx::Size size;
-
-  // True if this is an internal touchscreen.
-  bool is_internal;
-};
-
-}  // namespace ui
-
-#endif  // UI_EVENTS_TOUCHSCREEN_DEVICE_H_