423     scoped_refptr<TaskSource> task_source) {  in RegisterTaskSource()  argument
424   DCHECK(task_source);  in RegisterTaskSource()
426   TaskShutdownBehavior shutdown_behavior = task_source->shutdown_behavior();  in RegisterTaskSource()
431   return RegisteredTaskSource(std::move(task_source), this);  in RegisterTaskSource()
449     RegisteredTaskSource task_source) {  in RunAndPopNextTask()  argument
450   DCHECK(task_source);  in RunAndPopNextTask()
452   const bool should_run_tasks = BeforeRunTask(task_source->shutdown_behavior());  in RunAndPopNextTask()
458     auto transaction = task_source->BeginTransaction();  in RunAndPopNextTask()
459     task = should_run_tasks ? task_source.TakeTask(&transaction)  in RunAndPopNextTask()
460                             : task_source.Clear(&transaction);  in RunAndPopNextTask()
466     RunTask(std::move(task.value()), task_source.get(), traits);  in RunAndPopNextTask()
469     AfterRunTask(task_source->shutdown_behavior());  in RunAndPopNextTask()
470   const bool task_source_must_be_queued = task_source.DidProcessTask();  in RunAndPopNextTask()
473     return task_source;  in RunAndPopNextTask()
497                           TaskSource* task_source,  in RunTask()  argument
499   DCHECK(task_source);  in RunTask()
501   const auto environment = task_source->GetExecutionEnvironment();  in RunTask()
534     switch (task_source->execution_mode()) {  in RunTask()
539         DCHECK(task_source->task_runner());  in RunTask()
541             static_cast<SequencedTaskRunner*>(task_source->task_runner()));  in RunTask()
543             static_cast<SequencedTaskRunner*>(task_source->task_runner()),  in RunTask()
547         DCHECK(task_source->task_runner());  in RunTask()
549             static_cast<SingleThreadTaskRunner*>(task_source->task_runner()));  in RunTask()
551             static_cast<SequencedTaskRunner*>(task_source->task_runner()),  in RunTask()
552             static_cast<SingleThreadTaskRunner*>(task_source->task_runner()),  in RunTask()
566                          task_source->execution_mode())],  in RunTask()
655     scoped_refptr<TaskSource> task_source) {  in UnregisterTaskSource()  argument
656   DCHECK(task_source);  in UnregisterTaskSource()
657   if (task_source->shutdown_behavior() ==  in UnregisterTaskSource()
662   return task_source;  in UnregisterTaskSource()