Remove deprecated functions from components/task_scheduler_util/.

components/task_scheduler_util/browser/initialization.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/browser/initialization.h"
 
 #include <map>
 #include <string>
 
 #include "base/command_line.h"
 #include "base/task_scheduler/scheduler_worker_params.h"
 #include "base/task_scheduler/switches.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "components/task_scheduler_util/common/variations_util.h"
 #include "components/variations/variations_associated_data.h"
 
 namespace task_scheduler_util {
 
 namespace {
 
 constexpr char kFieldTrialName[] = "BrowserScheduler";
 
-enum WorkerPoolType : size_t {
-  BACKGROUND = 0,
-  BACKGROUND_BLOCKING,
-  FOREGROUND,
-  FOREGROUND_BLOCKING,
-  WORKER_POOL_COUNT  // Always last.
-};
-
 }  // namespace
 
 std::unique_ptr<base::TaskScheduler::InitParams>
 GetBrowserTaskSchedulerInitParamsFromVariations() {
   std::map<std::string, std::string> variation_params;
   if (!::variations::GetVariationParams(kFieldTrialName, &variation_params))
     return nullptr;
 
   return GetTaskSchedulerInitParams(
       "", variation_params, base::SchedulerBackwardCompatibility::INIT_COM_STA);
 }
 
-std::vector<base::SchedulerWorkerPoolParams>
-GetBrowserWorkerPoolParamsFromVariations() {
-  const auto init_params = GetBrowserTaskSchedulerInitParamsFromVariations();
-  if (!init_params)
-    return std::vector<base::SchedulerWorkerPoolParams>();
-
-  return std::vector<base::SchedulerWorkerPoolParams>{
-      init_params->background_worker_pool_params,
-      init_params->background_blocking_worker_pool_params,
-      init_params->foreground_worker_pool_params,
-      init_params->foreground_blocking_worker_pool_params};
-}
-
-size_t BrowserWorkerPoolIndexForTraits(const base::TaskTraits& traits) {
-  const bool is_background =
-      traits.priority() == base::TaskPriority::BACKGROUND;
-  if (traits.may_block() || traits.with_base_sync_primitives())
-    return is_background ? BACKGROUND_BLOCKING : FOREGROUND_BLOCKING;
-  return is_background ? BACKGROUND : FOREGROUND;
-}
-
 void MaybePerformBrowserTaskSchedulerRedirection() {
   // TODO(gab): Remove this when http://crbug.com/622400 concludes.
   if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableBrowserTaskScheduler) &&
       variations::GetVariationParamValue(
           kFieldTrialName, "RedirectSequencedWorkerPools") == "true") {
     const base::TaskPriority max_task_priority =
         variations::GetVariationParamValue(
             kFieldTrialName, "CapSequencedWorkerPoolsAtUserVisible") == "true"
             ? base::TaskPriority::USER_VISIBLE
             : base::TaskPriority::HIGHEST;
     base::SequencedWorkerPool::EnableWithRedirectionToTaskSchedulerForProcess(
         max_task_priority);
   }
 }
 
 }  // namespace task_scheduler_util