Move Task Scheduler Initialization From ios/chrome/browser to Web

components/task_scheduler_util/initialization_util.cc

-// 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 "components/task_scheduler_util/initialization_util.h"
-
-#include <vector>
-
-#include "base/bind.h"
-#include "base/task_scheduler/scheduler_worker_pool_params.h"
-#include "base/task_scheduler/task_scheduler.h"
-#include "components/task_scheduler_util/initialization/browser_util.h"
-#include "components/task_scheduler_util/variations/browser_variations_util.h"
-
-namespace task_scheduler_util {
-
-#if defined(OS_IOS)
-void InitializeDefaultBrowserTaskScheduler() {
-  std::vector<base::SchedulerWorkerPoolParams> params_vector =
-      variations::GetBrowserSchedulerWorkerPoolParamsFromVariations();
-  if (params_vector.empty()) {
-    params_vector =
-        initialization::GetDefaultBrowserSchedulerWorkerPoolParams();
-  }
-
-  base::TaskScheduler::CreateAndSetDefaultTaskScheduler(
-      params_vector,
-      base::Bind(&initialization::BrowserWorkerPoolIndexForTraits));
-  task_scheduler_util::variations::
-      MaybePerformBrowserTaskSchedulerRedirection();
-}
-#endif  // defined(OS_IOS)
-
-}  // namespace task_scheduler_util