Revert of Port Chromium OS touch noise filtering to Chromium

ui/events/ozone/evdev/touch_noise/touch_noise_finder.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_TOUCH_NOISE_TOUCH_NOISE_FINDER_H_
-#define UI_EVENTS_OZONE_EVDEV_TOUCH_NOISE_TOUCH_NOISE_FINDER_H_
-
-#include <bitset>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/time/time.h"
-#include "ui/events/ozone/evdev/events_ozone_evdev_export.h"
-#include "ui/events/ozone/evdev/touch_evdev_types.h"
-
-namespace ui {
-class TouchNoiseFilter;
-
-// Finds touches which are likely touch noise.
-class EVENTS_OZONE_EVDEV_EXPORT TouchNoiseFinder {
- public:
-  TouchNoiseFinder();
-  ~TouchNoiseFinder();
-
-  // Updates which ABS_MT_SLOTs are likely noise. |touches| should contain all
-  // of the in-progress touches at |time| (including suspected noisy touches).
-  // |touches| should have at most one entry per ABS_MT_SLOT.
-  void HandleTouches(const std::vector<InProgressTouchEvdev>& touches,
-                     base::TimeDelta time);
-
-  // Returns whether the in-progress touch at ABS_MT_SLOT |slot| is likely
-  // noise.
-  bool SlotHasNoise(size_t slot) const;
-
- private:
-  friend class TouchEventConverterEvdevTouchNoiseTest;
-
-  // The slots which are likely noise.
-  std::bitset<kNumTouchEvdevSlots> slots_with_noise_;
-
-  std::vector<TouchNoiseFilter*> filters_;
-
-  DISALLOW_COPY_AND_ASSIGN(TouchNoiseFinder);
-};
-
-}  // namespace ui
-
-#endif  // UI_EVENTS_OZONE_EVDEV_TOUCH_NOISE_TOUCH_NOISE_FINDER_H_