Revert of Move LatencyInfo to ui/latency_info

ui/events/latency_info_unittest.cc

+// Copyright 2013 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/latency_info.h"
+
+#include <stddef.h>
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace ui {
+
+TEST(LatencyInfoTest, AddTwoSeparateEvent) {
+  LatencyInfo info;
+  info.AddLatencyNumberWithTimestamp(INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT,
+                                     0,
+                                     1,
+                                     base::TimeTicks::FromInternalValue(100),
+                                     1);
+  info.AddLatencyNumberWithTimestamp(INPUT_EVENT_LATENCY_ORIGINAL_COMPONENT,
+                                     1,
+                                     5,
+                                     base::TimeTicks::FromInternalValue(1000),
+                                     2);
+
+  EXPECT_EQ(info.latency_components().size(), 2u);
+  LatencyInfo::LatencyComponent component;
+  EXPECT_FALSE(
+      info.FindLatency(INPUT_EVENT_LATENCY_UI_COMPONENT, 0, &component));
+  EXPECT_FALSE(
+      info.FindLatency(INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT, 1, &component));
+  EXPECT_TRUE(
+      info.FindLatency(INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT, 0, &component));
+  EXPECT_EQ(component.sequence_number, 1);
+  EXPECT_EQ(component.event_count, 1u);
+  EXPECT_EQ(component.event_time.ToInternalValue(), 100);
+  EXPECT_TRUE(
+      info.FindLatency(INPUT_EVENT_LATENCY_ORIGINAL_COMPONENT, 1, &component));
+  EXPECT_EQ(component.sequence_number, 5);
+  EXPECT_EQ(component.event_count, 2u);
+  EXPECT_EQ(component.event_time.ToInternalValue(), 1000);
+}
+
+TEST(LatencyInfoTest, AddTwoSameEvent) {
+  LatencyInfo info;
+  info.AddLatencyNumberWithTimestamp(INPUT_EVENT_LATENCY_ORIGINAL_COMPONENT,
+                                     0,
+                                     30,
+                                     base::TimeTicks::FromInternalValue(100),
+                                     2);
+  info.AddLatencyNumberWithTimestamp(INPUT_EVENT_LATENCY_ORIGINAL_COMPONENT,
+                                     0,
+                                     13,
+                                     base::TimeTicks::FromInternalValue(200),
+                                     3);
+
+  EXPECT_EQ(info.latency_components().size(), 1u);
+  LatencyInfo::LatencyComponent component;
+  EXPECT_FALSE(
+      info.FindLatency(INPUT_EVENT_LATENCY_UI_COMPONENT, 0, &component));
+  EXPECT_FALSE(
+      info.FindLatency(INPUT_EVENT_LATENCY_ORIGINAL_COMPONENT, 1, &component));
+  EXPECT_TRUE(
+      info.FindLatency(INPUT_EVENT_LATENCY_ORIGINAL_COMPONENT, 0, &component));
+  EXPECT_EQ(component.sequence_number, 30);
+  EXPECT_EQ(component.event_count, 5u);
+  EXPECT_EQ(component.event_time.ToInternalValue(), (100 * 2 + 200 * 3) / 5);
+}
+
+}  // namespace ui