We collected startup traces from a small % of users. Some traces have really long startup. This bug is filed based on the traces and we do not have repro steps.

See reports:
https://crash.corp.google.com/browse?q=reportid=%270ebe8a25d4f68e34%27#6
https://crash.corp.google.com/browse?q=reportid=%27b282e9eb19a8ce7d%27#6

It looks like the function mentioned above blocks the main thread for long time. Blocking browser main thread for more than 5 seconds could cause Android to kill the application.