TaskScheduler: Make SchedulerWorkerThread own its delegate.

base/task_scheduler/scheduler_thread_pool_impl_unittest.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/scheduler_thread_pool_impl.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <unordered_set>
@@ skipping 39 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(TestDelayedTaskManager);
 };
 
 class TaskSchedulerThreadPoolImplTest
     : public testing::TestWithParam<ExecutionMode> {
  protected:
   TaskSchedulerThreadPoolImplTest() = default;
 
   void SetUp() override {
-    thread_pool_ = SchedulerThreadPoolImpl::CreateThreadPool(
+    thread_pool_ = SchedulerThreadPoolImpl::Create(
         ThreadPriority::NORMAL, kNumThreadsInThreadPool,
         Bind(&TaskSchedulerThreadPoolImplTest::ReEnqueueSequenceCallback,
              Unretained(this)),
         &task_tracker_, &delayed_task_manager_);
     ASSERT_TRUE(thread_pool_);
   }
 
   void TearDown() override {
     thread_pool_->WaitForAllWorkerThreadsIdleForTesting();
     thread_pool_->JoinForTesting();
@@ skipping 239 matching lines @@
 
 INSTANTIATE_TEST_CASE_P(Parallel,
                         TaskSchedulerThreadPoolImplTest,
                         ::testing::Values(ExecutionMode::PARALLEL));
 INSTANTIATE_TEST_CASE_P(Sequenced,
                         TaskSchedulerThreadPoolImplTest,
                         ::testing::Values(ExecutionMode::SEQUENCED));
 
 }  // namespace internal
 }  // namespace base