ChildThread::~ChildThread() {
#ifdef IPC_MESSAGE_LOG_ENABLED
  IPC::Logging::GetInstance()->SetIPCSender(NULL);
#endif

  channel_->RemoveFilter(histogram_message_filter_.get());
  channel_->RemoveFilter(sync_message_filter_.get());

  channel_->ClearIPCTaskRunner();
  g_lazy_tls.Pointer()->Set(NULL);
}

Unknown