Report expected task queueing time via UMA

components/scheduler/child/scheduler_helper.cc

 // Copyright 2015 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/scheduler/child/scheduler_helper.h"
 
 #include "base/time/default_tick_clock.h"
 #include "base/trace_event/trace_event.h"
 #include "base/trace_event/trace_event_argument.h"
 #include "components/scheduler/base/task_queue_impl.h"
@@ skipping 14 matching lines @@
                                disabled_by_default_verbose_tracing_category)),
       control_task_runner_(NewTaskQueue(
           TaskQueue::Spec("control_tq")
               .SetWakeupPolicy(TaskQueue::WakeupPolicy::DONT_WAKE_OTHER_QUEUES)
               .SetShouldNotifyObservers(false))),
       control_after_wakeup_task_runner_(NewTaskQueue(
           TaskQueue::Spec("control_after_wakeup_tq")
               .SetPumpPolicy(TaskQueue::PumpPolicy::AFTER_WAKEUP)
               .SetWakeupPolicy(TaskQueue::WakeupPolicy::DONT_WAKE_OTHER_QUEUES)
               .SetShouldNotifyObservers(false))),
-      default_task_runner_(NewTaskQueue(TaskQueue::Spec("default_tq")
-                                            .SetShouldMonitorQuiescence(true))),
+      default_task_runner_(NewTaskQueue(
+          TaskQueue::Spec("default_tq").SetShouldMonitorQuiescence(true))),
       observer_(nullptr),
       tracing_category_(tracing_category),
       disabled_by_default_tracing_category_(
           disabled_by_default_tracing_category) {
   control_task_runner_->SetQueuePriority(TaskQueue::CONTROL_PRIORITY);
   control_after_wakeup_task_runner_->SetQueuePriority(
       TaskQueue::CONTROL_PRIORITY);
 
   task_queue_manager_->SetWorkBatchSize(4);
 
@@ skipping 108 matching lines @@
     observer_->OnTriedToExecuteBlockedTask(queue, task);
 }
 
 TaskQueue* SchedulerHelper::CurrentlyExecutingTaskQueue() const {
   if (!task_queue_manager_)
     return nullptr;
   return task_queue_manager_->currently_executing_task_queue();
 }
 
 }  // namespace scheduler