Move and rename TaskTimeTracker to public interface exposed to WebThread, use in WebPerf Agent.

third_party/WebKit/Source/platform/scheduler/base/long_task_tracker_unittest.cc

Index: third_party/WebKit/Source/platform/scheduler/base/long_task_tracker_unittest.cc
diff --git a/third_party/WebKit/Source/platform/scheduler/base/long_task_tracker_unittest.cc b/third_party/WebKit/Source/platform/scheduler/base/long_task_tracker_unittest.cc
deleted file mode 100644
index 322d02876e53be253ede9d30336901376b1754f2..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/platform/scheduler/base/long_task_tracker_unittest.cc
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright 2016 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 "platform/scheduler/base/long_task_tracker.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace blink {
-namespace scheduler {
-
-class LongTaskTrackerTest : public ::testing::Test {
- protected:
-  LongTaskTracker long_task_tracker_;
-
-  size_t NumLongTasks() { return long_task_tracker_.long_task_times_.size(); }
-};
-
-TEST_F(LongTaskTrackerTest, RecordAndReport) {
-  EXPECT_EQ(0U, NumLongTasks());
-
-  // Add long tasks above 50ms threshold
-  long_task_tracker_.RecordLongTask(
-      base::TimeTicks() + base::TimeDelta::FromMilliseconds(4500),
-      base::TimeDelta::FromMilliseconds(51));
-  EXPECT_EQ(1U, NumLongTasks());
-
-  long_task_tracker_.RecordLongTask(
-      base::TimeTicks() + base::TimeDelta::FromMilliseconds(5500),
-      base::TimeDelta::FromMilliseconds(75));
-  EXPECT_EQ(2U, NumLongTasks());
-
-  // Add task below 50ms threshold
-  long_task_tracker_.RecordLongTask(
-      base::TimeTicks() + base::TimeDelta::FromMilliseconds(6500),
-      base::TimeDelta::FromMilliseconds(49));
-  EXPECT_EQ(2U, NumLongTasks());
-
-  LongTaskTracker::LongTaskTiming long_task_times =
-      long_task_tracker_.GetLongTaskTiming();
-  // GetLongTaskTiming clears the internal vector
-  EXPECT_EQ(0U, NumLongTasks());
-  // Validate recorded contents
-  EXPECT_EQ(2U, long_task_times.size());
-  EXPECT_EQ(base::TimeTicks() + base::TimeDelta::FromMilliseconds(4500),
-            long_task_times[0].first);
-  EXPECT_EQ(51, long_task_times[0].second.InMilliseconds());
-  EXPECT_EQ(base::TimeTicks() + base::TimeDelta::FromMilliseconds(5500),
-            long_task_times[1].first);
-  EXPECT_EQ(75, long_task_times[1].second.InMilliseconds());
-}
-
-}  // namespace scheduler
-}  // namespace blink