Fix timeout on mixer side (#2638)
Fix timeout on mixer side (#2638)

Automatic merge from submit-queue.

Fix rate limit fortio timeout on mixer_test side

Default timeout wasn’t initialized

(There is also another more complete fix in 
https://github.com/istio/fortio/pull/84
)
smawson/istio,istio/istio,geeknoid/istio,istio/istio,istio/istio,smawson/istio,frankbu/istio,smawson/istio,frankbu/istio,smawson/istio,smawson/istio,frankbu/istio,geeknoid/istio,smawson/istio,geeknoid/istio,geeknoid/istio,frankbu/istio,frankbu/istio,frankbu/istio,istio/istio,istio/istio,geeknoid/istio,geeknoid/istio