Currently, all failures in SyncSocket::ReadWithTimeout() are interpreted as timeouts in AudioSyncReader::WaitUntilDataIsReady(). We should separate actual timeouts from other failures for logs and stats.

https://cs.chromium.org/chromium/src/content/browser/renderer_host/media/audio_sync_reader.cc?type=cs&q=package:%5Echromium$&l=234