Remove SchedulerWorkerPoolImpl::ReEnqueueSequenceCallback.

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/bind.h"
-#include "base/bind_helpers.h"
 #include "base/memory/ptr_util.h"
 #include "base/task_scheduler/delayed_task_manager.h"
 #include "base/task_scheduler/scheduler_worker_pool_params.h"
+#include "base/task_scheduler/sequence.h"
 #include "base/task_scheduler/sequence_sort_key.h"
 #include "base/task_scheduler/task.h"
 #include "base/task_scheduler/task_tracker.h"
 
 namespace base {
 namespace internal {
 
 namespace {
 
 enum EnvironmentType {
@@ skipping 34 matching lines @@
     : name_(name),
       service_thread_("TaskSchedulerServiceThread"),
       single_thread_task_runner_manager_(&task_tracker_,
                                          &delayed_task_manager_) {
   static_assert(arraysize(worker_pools_) == ENVIRONMENT_COUNT,
                 "The size of |worker_pools_| must match ENVIRONMENT_COUNT.");
   static_assert(
       arraysize(kEnvironmentParams) == ENVIRONMENT_COUNT,
       "The size of |kEnvironmentParams| must match ENVIRONMENT_COUNT.");
 
-  // Callback invoked by workers to re-enqueue a sequence in the appropriate
-  // PriorityQueue.
-  const auto reenqueue_sequence_callback = BindRepeating(
-      &TaskSchedulerImpl::ReEnqueueSequenceCallback, Unretained(this));
-
   for (int environment_type = 0; environment_type < ENVIRONMENT_COUNT;
        ++environment_type) {
     worker_pools_[environment_type] = MakeUnique<SchedulerWorkerPoolImpl>(
         name_ + kEnvironmentParams[environment_type].name_suffix,
-        kEnvironmentParams[environment_type].priority_hint,
-        reenqueue_sequence_callback, &task_tracker_, &delayed_task_manager_);
+        kEnvironmentParams[environment_type].priority_hint, &task_tracker_,
+        &delayed_task_manager_);
   }
 }
 
 TaskSchedulerImpl::~TaskSchedulerImpl() {
 #if DCHECK_IS_ON()
   DCHECK(join_for_testing_returned_.IsSet());
 #endif
 }
 
 void TaskSchedulerImpl::Start(const TaskScheduler::InitParams& init_params) {
@@ skipping 113 matching lines @@
 #if DCHECK_IS_ON()
   join_for_testing_returned_.Set();
 #endif
 }
 
 SchedulerWorkerPoolImpl* TaskSchedulerImpl::GetWorkerPoolForTraits(
     const TaskTraits& traits) const {
   return worker_pools_[GetEnvironmentIndexForTraits(traits)].get();
 }
 
-void TaskSchedulerImpl::ReEnqueueSequenceCallback(
-    scoped_refptr<Sequence> sequence) {
-  DCHECK(sequence);
-
-  const SequenceSortKey sort_key = sequence->GetSortKey();
-
-  // The next task in |sequence| should run in a worker pool suited for its
-  // traits, except for the priority which is adjusted to the highest priority
-  // in |sequence|.
-  const TaskTraits traits =
-      sequence->PeekTaskTraits().WithPriority(sort_key.priority());
-
-  GetWorkerPoolForTraits(traits)->ReEnqueueSequence(std::move(sequence),
-                                                    sort_key);
-}
-
 }  // namespace internal
 }  // namespace base