These timeouts will ensure that we don't block the Safe Browsing update thread
for too long when we encounter slow or bad network conditions.
MozReview-Commit-ID: AJfR193cTf8
When full match is found in both v2 and v4, the threat types returned should also be the same.
If threat types are different, the telemetry record this by setting a bit flags which indicates
what threat types are being returned.
If threat types are the same, this telemetry will record 0.
MozReview-Commit-ID: Laz77yoCg00