API tests IndexedDB.IndexedDBTempFileSize, ProcessSwap.UsePrewarmedProcessAfterTerminatingNetworkProcess, and ResourceLoadStatistics.NetworkProcessRestart have become flaky timeouts on iOS and macOS bots: https://results.webkit.org/?suite=api-tests&suite=api-tests&suite=api-tests&test=TestWebKitAPI.IndexedDB.IndexedDBTempFileSize&test=TestWebKitAPI.ResourceLoadStatistics.NetworkProcessRestart&test=TestWebKitAPI.ProcessSwap.UsePrewarmedProcessAfterTerminatingNetworkProcess
Based on test history, I think this started after https://trac.webkit.org/changeset/264178/webkit landed. There are a couple of instances of timeouts earlier that seem to line up with when that change was originally landed and subsequently reverted for an assertion failure issue.
<rdar://problem/65365667>
*** This bug has been marked as a duplicate of bug 214263 ***