Port Chromium OS touch noise filtering to Chromium

ui/events/ozone/evdev/touch_noise/horizontally_aligned_touch_noise_filter.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_HORIZONTALLY_ALIGNED_TOUCH_NOISE_FILTER_H_
+#define UI_EVENTS_OZONE_EVDEV_TOUCH_NOISE_HORIZONTALLY_ALIGNED_TOUCH_NOISE_FILTER_H_
+
+#include "base/macros.h"
+#include "ui/events/ozone/evdev/touch_noise/touch_noise_filter.h"
+
+namespace ui {
+
+class HorizontallyAlignedTouchNoiseFilter : public TouchNoiseFilter {
+ public:
+  HorizontallyAlignedTouchNoiseFilter() {}
+  ~HorizontallyAlignedTouchNoiseFilter() override {}
+
+  // TouchNoiseFilter:
+  void Filter(const std::vector<InProgressTouchEvdev>& touches,
+              base::TimeDelta time,
+              std::bitset<kNumTouchEvdevSlots>* slots_with_noise) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(HorizontallyAlignedTouchNoiseFilter);
+};
+
+}  // namespace ui
+
+#endif  // UI_EVENTS_OZONE_EVDEV_TOUCH_NOISE_HORIZONTALLY_ALIGNED_TOUCH_NOISE_FILTER_H_