Revert of Port Chromium OS touch noise filtering to Chromium

ui/events/ozone/evdev/touch_noise/touch_noise_finder_unittest.cc

Index: ui/events/ozone/evdev/touch_noise/touch_noise_finder_unittest.cc
diff --git a/ui/events/ozone/evdev/touch_noise/touch_noise_finder_unittest.cc b/ui/events/ozone/evdev/touch_noise/touch_noise_finder_unittest.cc
deleted file mode 100644
index febf4936103309c2b3a8c871403cf50ae1b7b2d2..0000000000000000000000000000000000000000
--- a/ui/events/ozone/evdev/touch_noise/touch_noise_finder_unittest.cc
+++ /dev/null
@@ -1,140 +0,0 @@
-// 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/touch_noise/touch_noise_finder.h"
-
-#include <algorithm>
-
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/strings/stringprintf.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "ui/events/ozone/evdev/touch_evdev_types.h"
-#include "ui/gfx/geometry/point_f.h"
-
-namespace ui {
-
-class TouchNoiseFinderTest : public testing::Test {
- public:
-  struct TouchEntry {
-    int time_ms;
-    size_t slot;
-    bool touching;
-    gfx::PointF location;
-    bool expect_noise;
-  };
-
-  TouchNoiseFinderTest() {}
-  ~TouchNoiseFinderTest() override {}
-
-  bool FilterAndCheck(const TouchEntry entries[], size_t count) {
-    std::vector<InProgressTouchEvdev> touches;
-    size_t start_index = 0u;
-    bool was_touching = false;
-    for (size_t i = 0; i < count; ++i) {
-      const TouchEntry& entry = entries[i];
-
-      InProgressTouchEvdev touch;
-      touch.x = entry.location.x();
-      touch.y = entry.location.y();
-      touch.tracking_id = entry.slot;
-      touch.slot = entry.slot;
-      touch.was_touching = was_touching;
-      touch.touching = entry.touching;
-
-      if (i == count - 1 || entry.time_ms != entries[i + 1].time_ms) {
-        touch_noise_finder_->HandleTouches(
-            touches, base::TimeDelta::FromMilliseconds(entry.time_ms));
-
-        for (size_t j = 0; j < touches.size(); ++j) {
-          bool expect_noise = entries[j + start_index].expect_noise;
-          size_t slot = touches[j].slot;
-          if (touch_noise_finder_->SlotHasNoise(slot) != expect_noise)
-            LOG(ERROR) << base::StringPrintf(
-                "Incorrect filtering at %dms for slot %lu", entry.time_ms,
-                slot);
-          return false;
-        }
-
-        start_index = i + 1;
-        touches.clear();
-      }
-
-      was_touching = entry.touching;
-    }
-
-    return true;
-  }
-
- private:
-  // testing::Test:
-  void SetUp() override {
-    touch_noise_finder_.reset(new TouchNoiseFinder);
-  }
-
-  scoped_ptr<TouchNoiseFinder> touch_noise_finder_;
-
-  DISALLOW_COPY_AND_ASSIGN(TouchNoiseFinderTest);
-};
-
-// Test that taps which are far apart in quick succession are considered noise.
-TEST_F(TouchNoiseFinderTest, FarApartTaps) {
-  const TouchEntry kTestData[] = {
-      {10, 1, true, gfx::PointF(10, 10), false},
-      {20, 1, true, gfx::PointF(10, 11), false},
-      {30, 1, true, gfx::PointF(10, 12), false},
-      {30, 2, true, gfx::PointF(2500, 1000), true},
-      {40, 1, true, gfx::PointF(10, 13), true},
-      {40, 2, true, gfx::PointF(2500, 1001), true},
-      {50, 1, true, gfx::PointF(10, 14), true},
-      {50, 2, false, gfx::PointF(2500, 1002), true},
-      {60, 1, false, gfx::PointF(10, 15), true}};
-  EXPECT_TRUE(FilterAndCheck(kTestData, arraysize(kTestData)));
-}
-
-// Test that taps which are far apart but do not occur in quick succession are
-// not considered noise.
-TEST_F(TouchNoiseFinderTest, FarApartTapsSlow) {
-  const TouchEntry kTestData[] = {
-      {1000, 1, true, gfx::PointF(10, 10), false},
-      {1500, 1, true, gfx::PointF(10, 11), false},
-      {2000, 1, true, gfx::PointF(10, 12), false},
-      {2500, 1, true, gfx::PointF(10, 13), false},
-      {2500, 2, true, gfx::PointF(2500, 1000), false},
-      {3000, 1, true, gfx::PointF(10, 14), false},
-      {3000, 2, false, gfx::PointF(2500, 1001), false},
-      {3500, 1, false, gfx::PointF(10, 15), false}};
-  EXPECT_TRUE(FilterAndCheck(kTestData, arraysize(kTestData)));
-}
-
-// Test that touches which are horizontally aligned are considered noise.
-TEST_F(TouchNoiseFinderTest, HorizontallyAligned) {
-  const TouchEntry kTestData[] = {
-      {10, 1, true, gfx::PointF(10, 10), false},
-      {20, 1, true, gfx::PointF(10, 10), false},
-      {20, 2, true, gfx::PointF(10, 25), true},
-      {30, 1, false, gfx::PointF(10, 10), false},
-      {30, 2, true, gfx::PointF(10, 25), true},
-      {40, 2, false, gfx::PointF(10, 25), true}};
-  EXPECT_TRUE(FilterAndCheck(kTestData, arraysize(kTestData)));
-}
-
-// Test that touches in the same position are considered noise.
-TEST_F(TouchNoiseFinderTest, SamePosition) {
-  const TouchEntry kTestData[] = {
-      {1000, 1, true, gfx::PointF(10, 10), false},
-      {1500, 1, false, gfx::PointF(10, 10), false},
-      {2000, 1, true, gfx::PointF(10, 10), false},
-      {2500, 1, false, gfx::PointF(10, 10), false},
-      {3000, 1, true, gfx::PointF(50, 50), false},
-      {3500, 1, true, gfx::PointF(50, 51), false},
-      {3500, 2, true, gfx::PointF(10, 10), true},
-      {4000, 1, false, gfx::PointF(50, 52), false},
-      {4000, 2, false, gfx::PointF(10, 10), true},
-      {4500, 1, true, gfx::PointF(10, 10), true},
-      {5000, 1, false, gfx::PointF(10, 10), true}};
-  EXPECT_TRUE(FilterAndCheck(kTestData, arraysize(kTestData)));
-}
-
-}  // namespace ui