ObserveLoopDestruction 15 media/audio/scoped_task_runner_observer.cc ObserveLoopDestruction(true, NULL); ObserveLoopDestruction 19 media/audio/scoped_task_runner_observer.cc ObserveLoopDestruction(false, NULL); ObserveLoopDestruction 36 media/audio/scoped_task_runner_observer.cc base::Bind(&ScopedTaskRunnerObserver::ObserveLoopDestruction, ObserveLoopDestruction 41 media/audio/scoped_task_runner_observer.h void ObserveLoopDestruction(bool enable, base::WaitableEvent* done);