Remove old Aura Gesture Detection Pipeline.

ui/events/gestures/velocity_calculator.h

-// Copyright (c) 2012 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_GESTURES_VELOCITY_CALCULATOR_H_
-#define UI_EVENTS_GESTURES_VELOCITY_CALCULATOR_H_
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "ui/events/events_export.h"
-
-namespace ui {
-
-class EVENTS_EXPORT VelocityCalculator {
- public:
-  explicit VelocityCalculator(int bufferSize);
-  ~VelocityCalculator();
-  void PointSeen(float x, float y, int64 time);
-  float XVelocity();
-  float YVelocity();
-  float VelocitySquared();
-  void ClearHistory();
-
- private:
-  struct Point {
-    float x;
-    float y;
-    int64 time;
-  };
-
-  void UpdateVelocity();
-
-  typedef scoped_ptr<Point[]> HistoryBuffer;
-  HistoryBuffer buffer_;
-
-  // index_ points directly after the last point added.
-  int index_;
-  size_t num_valid_entries_;
-  const size_t buffer_size_;
-  float x_velocity_;
-  float y_velocity_;
-  bool velocities_stale_;
-  DISALLOW_COPY_AND_ASSIGN(VelocityCalculator);
-};
-
-}  // namespace ui
-
-#endif  // UI_EVENTS_GESTURES_VELOCITY_CALCULATOR_H_