Port Chromium OS touch noise filtering to Chromium

ui/events/ozone/evdev/device_event_dispatcher_evdev.h

 // 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.
 
 #ifndef UI_EVENTS_OZONE_EVDEV_DEVICE_EVENT_DISPATCHER_H_
 #define UI_EVENTS_OZONE_EVDEV_DEVICE_EVENT_DISPATCHER_H_
 
 #include <vector>
 
 #include "base/time/time.h"
@@ skipping 82 matching lines @@
   const gfx::PointF location;
   const gfx::Vector2dF delta;
   const gfx::Vector2dF ordinal_delta;
   int finger_count;
   const base::TimeDelta timestamp;
 };
 
 struct EVENTS_OZONE_EVDEV_EXPORT TouchEventParams {
   TouchEventParams(int device_id,
                    int touch_id,
+                   int tracking_id,
                    EventType type,
                    const gfx::PointF& location,
                    const gfx::Vector2dF& radii,
                    float pressure,
                    const base::TimeDelta& timestamp);
   TouchEventParams(const TouchEventParams& other);
   ~TouchEventParams();
 
   int device_id;
   int touch_id;
+  int tracking_id;
   EventType type;
   gfx::PointF location;
   gfx::Vector2dF radii;
   float pressure;
   base::TimeDelta timestamp;
 };
 
 // Interface used by device objects for event dispatch.
 class EVENTS_OZONE_EVDEV_EXPORT DeviceEventDispatcherEvdev {
  public:
@@ skipping 16 matching lines @@
       const std::vector<TouchscreenDevice>& devices) = 0;
   virtual void DispatchMouseDevicesUpdated(
       const std::vector<InputDevice>& devices) = 0;
   virtual void DispatchTouchpadDevicesUpdated(
       const std::vector<InputDevice>& devices) = 0;
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_OZONE_EVDEV_DEVICE_EVENT_DISPATCHER_H_