ozone: Map TouchEvent::touch_id_ into expected range

ui/events/ozone/evdev/device_event_dispatcher_evdev.cc

 // Copyright 2015 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.
 
 #include "ui/events/ozone/evdev/device_event_dispatcher_evdev.h"
 
 namespace ui {
 
 KeyEventParams::KeyEventParams(int device_id,
                                unsigned int code,
@@ skipping 70 matching lines @@
       finger_count(finger_count),
       timestamp(timestamp) {
 }
 
 ScrollEventParams::ScrollEventParams(const ScrollEventParams& other) = default;
 
 ScrollEventParams::~ScrollEventParams() {
 }
 
 TouchEventParams::TouchEventParams(int device_id,
-                                   int touch_id,
+                                   int slot,
                                    EventType type,
                                    const gfx::PointF& location,
                                    const gfx::Vector2dF& radii,
                                    float pressure,
                                    const base::TimeDelta& timestamp)
     : device_id(device_id),
-      touch_id(touch_id),
+      slot(slot),
       type(type),
       location(location),
       radii(radii),
       pressure(pressure),
       timestamp(timestamp) {
 }
 
 TouchEventParams::TouchEventParams(const TouchEventParams& other) = default;
 
 TouchEventParams::~TouchEventParams() {
 }
 
 }  // namspace ui