Implement Shared SingleThreadTaskRunners in the Task Scheduler

base/task_scheduler/task_scheduler_impl.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 "base/task_scheduler/task_scheduler_impl.h"
 
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 #include "base/task_scheduler/delayed_task_manager.h"
@@ skipping 91 matching lines @@
 TaskSchedulerImpl::CreateSequencedTaskRunnerWithTraits(
     const TaskTraits& traits) {
   return GetWorkerPoolForTraits(traits)->CreateSequencedTaskRunnerWithTraits(
       traits);
 }
 
 scoped_refptr<SingleThreadTaskRunner>
 TaskSchedulerImpl::CreateSingleThreadTaskRunnerWithTraits(
     const TaskTraits& traits,
     SingleThreadTaskRunnerThreadMode thread_mode) {
-  const auto& environment_params =
-      kEnvironmentParams[GetEnvironmentIndexForTraits(traits)];
   return single_thread_task_runner_manager_
-      .CreateSingleThreadTaskRunnerWithTraits(
-          name_ + environment_params.name_suffix,
-          environment_params.priority_hint, traits);
+      .CreateSingleThreadTaskRunnerWithTraits(name_, traits, thread_mode);
 }
 
 #if defined(OS_WIN)
 scoped_refptr<SingleThreadTaskRunner>
 TaskSchedulerImpl::CreateCOMSTATaskRunnerWithTraits(
     const TaskTraits& traits,
     SingleThreadTaskRunnerThreadMode thread_mode) {
-  const auto& environment_params =
-      kEnvironmentParams[GetEnvironmentIndexForTraits(traits)];
   return single_thread_task_runner_manager_.CreateCOMSTATaskRunnerWithTraits(
-      environment_params.name_suffix, environment_params.priority_hint, traits);
+      name_, traits, thread_mode);
 }
 #endif  // defined(OS_WIN)
 
 std::vector<const HistogramBase*> TaskSchedulerImpl::GetHistograms() const {
   std::vector<const HistogramBase*> histograms;
   for (const auto& worker_pool : worker_pools_)
     worker_pool->GetHistograms(&histograms);
 
   return histograms;
 }
@@ skipping 27 matching lines @@
 #endif
 }
 
 SchedulerWorkerPoolImpl* TaskSchedulerImpl::GetWorkerPoolForTraits(
     const TaskTraits& traits) const {
   return worker_pools_[GetEnvironmentIndexForTraits(traits)].get();
 }
 
 }  // namespace internal
 }  // namespace base