Windmill.proto changes. Adding counter field in ReportStatsRequest.
Windmill.proto changes. Adding counter field in ReportStatsRequest.

It shall be used to send updates for the global counters. First intended usage is to report java harness restarts.

----Release Notes----
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=97886969

dhalperi/incubator-beam,vikkyrk/incubator-beam,robertwb/incubator-beam,amitsela/incubator-beam,markflyhigh/incubator-beam,PieterDM/DataflowJavaSDK,peihe/incubator-beam,dhalperi/incubator-beam,staslev/beam,markflyhigh/incubator-beam,markflyhigh/incubator-beam,apache/beam,tweise/beam,RyanSkraba/beam,apache/beam,nevillelyh/DataflowJavaSDK,robertwb/incubator-beam,staslev/beam,rangadi/beam,lukecwik/incubator-beam,manuzhang/beam,ravwojdyla/incubator-beam,charlesccychen/beam,staslev/incubator-beam,chamikaramj/incubator-beam,lukecwik/incubator-beam,charlesccychen/beam,rangadi/beam,jasonkuster/beam,rangadi/beam,charlesccychen/beam,rangadi/beam,markflyhigh/incubator-beam,tgroh/incubator-beam,sureshjosh/DataflowJavaSDK,joshualitt/DataflowJavaSDK,lukecwik/incubator-beam,robertwb/incubator-beam,robertwb/incubator-beam,robertwb/incubator-beam,joshualitt/incubator-beam,RyanSkraba/beam,apache/beam,tgroh/beam,josauder/AOP_incubator_beam,jbonofre/incubator-beam,eljefe6a/incubator-beam,lukecwik/incubator-beam,wangyum/beam,PieterDM/DataflowJavaSDK,peihe/incubator-beam,rangadi/incubator-beam,peihe/DataflowJavaSDK,vikkyrk/incubator-beam,chamikaramj/beam,apache/beam,lukecwik/incubator-beam,jbonofre/beam,mxm/incubator-beam,iemejia/incubator-beam,joshualitt/DataflowJavaSDK,chamikaramj/beam,sureshjosh/DataflowJavaSDK,amitsela/beam,charlesccychen/incubator-beam,charlesccychen/beam,ravwojdyla/incubator-beam,markflyhigh/incubator-beam,peihe/DataflowJavaSDK,iemejia/incubator-beam,chamikaramj/beam,apache/beam,josauder/AOP_incubator_beam,prabeesh/DataflowJavaSDK,jbonofre/beam,wangyum/beam,rangadi/beam,apache/beam,tyagihas/DataflowJavaSDK,RyanSkraba/beam,vikkyrk/incubator-beam,amitsela/beam,chamikaramj/beam,wtanaka/beam,joshualitt/incubator-beam,yk5/beam,chamikaramj/beam,amitsela/incubator-beam,jasonkuster/beam,smarthi/DataflowJavaSDK,apache/beam,markflyhigh/incubator-beam,manuzhang/incubator-beam,lukecwik/incubator-beam,wangyum/beam,eljefe6a/incubator-beam,apache/beam,chamikaramj/beam,jasonkuster/incubator-beam,tweise/incubator-beam,rangadi/incubator-beam,tgroh/beam,jasonkuster/beam,lukecwik/incubator-beam,chamikaramj/beam,dhananjaypatkar/DataflowJavaSDK,chamikaramj/incubator-beam,wtanaka/beam,markflyhigh/incubator-beam,peihe/incubator-beam,ravwojdyla/incubator-beam,xsm110/Apache-Beam,wangyum/beam,lukecwik/incubator-beam,jasonkuster/incubator-beam,staslev/beam,xsm110/Apache-Beam,staslev/incubator-beam,ahartley39/DataflowJavaSDK,manuzhang/beam,lukecwik/incubator-beam,lukecwik/incubator-beam,chamikaramj/beam,Test-Betta-Inc/musical-umbrella,smarthi/DataflowJavaSDK,xsm110/Apache-Beam,RyanSkraba/beam,chamikaramj/beam,tgroh/beam,yk5/beam,RyanSkraba/beam,charlesccychen/beam,tweise/beam,dhalperi/beam,chamikaramj/beam,dhalperi/beam,prabeesh/DataflowJavaSDK,tgroh/incubator-beam,tgroh/beam,eljefe6a/incubator-beam,charlesccychen/incubator-beam,RyanSkraba/beam,tyagihas/DataflowJavaSDK,mxm/incubator-beam,Test-Betta-Inc/musical-umbrella,wtanaka/beam,manuzhang/beam,dhalperi/beam,rangadi/incubator-beam,yk5/beam,elibixby/DataflowJavaSDK,apache/beam,manuzhang/incubator-beam,sammcveety/incubator-beam,tweise/incubator-beam,RyanSkraba/beam,apache/beam,dhananjaypatkar/DataflowJavaSDK,robertwb/incubator-beam,charlesccychen/incubator-beam,jbonofre/beam,amitsela/beam,robertwb/incubator-beam,jbonofre/incubator-beam,rangadi/beam,charlesccychen/beam,robertwb/incubator-beam,ahartley39/DataflowJavaSDK,sammcveety/incubator-beam,rangadi/beam,sammcveety/DataflowJavaSDK,charlesccychen/beam,apache/beam,robertwb/incubator-beam,sammcveety/incubator-beam,amarouni/incubator-beam,amarouni/incubator-beam,jbonofre/beam,elibixby/DataflowJavaSDK,robertwb/incubator-beam,sammcveety/DataflowJavaSDK