Fix previously failed proxies getting ignored in warmup url check

Proxies that are marked as previously failed in config are ignored when
checking if warmup url reaches them. Since the config is persistent, this
causes proxies that fail once are never retried.

Bug: 922667
Change-Id: I329712bbccfc69bcd7a71cdf9bef12ef13ff4ab6
Reviewed-by: Clark DuVall <>
Commit-Queue: rajendrant <>
Cr-Commit-Position: refs/heads/master@{#624453}
1 file changed