37d9e2f485
- Remove assertReleased and replace it with a proper condition variable that's opened when Downloader.download or Download.remove finish. As far as I can tell assertReleased was basically implementing "sleep for 10 seconds after the Downloader starts". Note fixing this properly also makes the tests run much faster! - Use ConditionVariable instead of CountDownLatch(1). - Use AtomicInteger instead of volatile int because it's clearer and allows removal of explanatory comments. PiperOrigin-RevId: 308819204