TaskScheduler: Nits in service thread and delayed tasks code.

base/task_scheduler/delayed_task_manager_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/delayed_task_manager.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 57 matching lines @@
   DelayedTaskManager manager(service_thread_task_runner);
 
   std::unique_ptr<Task> task(
       new Task(FROM_HERE, Bind(&DoNothing), TaskTraits(), kLongDelay));
   scoped_refptr<Sequence> sequence(new Sequence);
   testing::StrictMock<MockSchedulerWorkerPool> worker_pool;
 
   // Send |task| to the DelayedTaskManager.
   manager.AddDelayedTask(std::move(task), sequence, nullptr, &worker_pool);
 
-  // Run tasks that are ripe for execution on the service thread. Don't expect
-  // any call to the mock method of |worker_pool|.
+  // Run tasks that are ripe for execution. Don't expect any call to the mock
+  // method of |worker_pool|.
   service_thread_task_runner->RunUntilIdle();
 }
 
 // Verify that a delayed task is forwarded to its SchedulerWorkerPool when it is
 // ripe for execution.
 TEST(TaskSchedulerDelayedTaskManagerTest, DelayedTaskRunsAfterDelay) {
   scoped_refptr<TestMockTimeTaskRunner> service_thread_task_runner(
       new TestMockTimeTaskRunner);
   DelayedTaskManager manager(service_thread_task_runner);
 
@@ skipping 54 matching lines @@
 
   // Fast-forward time. Expect |task_b_raw| to be forwarded to the worker pool.
   EXPECT_CALL(worker_pool,
               PostTaskWithSequenceNowMock(task_b_raw, sequence.get(), nullptr));
   service_thread_task_runner->FastForwardBy(TimeDelta::FromHours(1));
   testing::Mock::VerifyAndClear(&worker_pool);
 }
 
 }  // namespace internal
 }  // namespace base