message: Increase timeout in test-only helper SendTask back to infinity
  Some tests on some bots are really slow. Rely on infrastructure timeouts instead.
  Cr-Commit-Position: refs/heads/master@{#29502}
diff: @@ -31,7 +31,8 @@ void SendTask(TaskQueueBase* task_queue, Closure&& task, rtc::Location loc) {
  rtc::Event event;
  task_queue->PostTask(
  ToQueuedTask(std::forward<Closure>(task), [&event] { event.Set(); }));
  - RTC_CHECK(event.Wait(/*give_up_after_ms=*/120'000, /*warn_after_ms=*/10'000))
  + RTC_CHECK(event.Wait(/*give_up_after_ms=*/rtc::Event::kForever,
  + /*warn_after_ms=*/10'000))
  << "Waited too long at " << loc.ToString();
  }
  