[RocksDB] Fix DBTest.UniversalCompactionTrigger to reflect the correct compaction trigger condition.
[RocksDB] Fix DBTest.UniversalCompactionTrigger to reflect the correct compaction trigger condition.

Summary: as title

Test Plan: make db_test; ./db_test

Reviewers: dhruba

Reviewed By: dhruba

CC: leveldb

Differential Revision: https://reviews.facebook.net/D12981

IMCG/RcoksDB,facebook/rocksdb,kaschaeffer/rocksdb,vashstorm/rocksdb,flabby/rocksdb,amyvmiwei/rocksdb,SunguckLee/RocksDB,IMCG/RcoksDB,mbarbon/rocksdb,JoeWoo/rocksdb,hobinyoon/rocksdb,luckywhu/rocksdb,wlqGit/rocksdb,vmx/rocksdb,alihalabyah/rocksdb,tsheasha/rocksdb,JoeWoo/rocksdb,wenduo/rocksdb,virtdb/rocksdb,JackLian/rocksdb,luckywhu/rocksdb,JoeWoo/rocksdb,sorphi/rocksdb,wat-ze-hex/rocksdb,geraldoandradee/rocksdb,bbiao/rocksdb,virtdb/rocksdb,tschottdorf/rocksdb,zhangpng/rocksdb,vmx/rocksdb,facebook/rocksdb,NickCis/rocksdb,OverlordQ/rocksdb,dkorolev/rocksdb,makelivedotnet/rocksdb,msb-at-yahoo/rocksdb,flabby/rocksdb,siddhartharay007/rocksdb,amyvmiwei/rocksdb,temicai/rocksdb,sorphi/rocksdb,fengshao0907/rocksdb,jalexanderqed/rocksdb,sorphi/rocksdb,IMCG/RcoksDB,Vaisman/rocksdb,rDSN-Projects/rocksdb.replicated,caijieming-baidu/rocksdb,tschottdorf/rocksdb,wenduo/rocksdb,alihalabyah/rocksdb,dkorolev/rocksdb,SunguckLee/RocksDB,ryneli/rocksdb,rDSN-Projects/rocksdb.replicated,mbarbon/rocksdb,virtdb/rocksdb,OverlordQ/rocksdb,anagav/rocksdb,rDSN-Projects/rocksdb.replicated,wskplho/rocksdb,kaschaeffer/rocksdb,tizzybec/rocksdb,RyanTech/rocksdb,caijieming-baidu/rocksdb,makelivedotnet/rocksdb,OverlordQ/rocksdb,virtdb/rocksdb,wat-ze-hex/rocksdb,hobinyoon/rocksdb,vmx/rocksdb,wskplho/rocksdb,anagav/rocksdb,skunkwerks/rocksdb,OverlordQ/rocksdb,JohnPJenkins/rocksdb,JackLian/rocksdb,ryneli/rocksdb,siddhartharay007/rocksdb,Applied-Duality/rocksdb,Applied-Duality/rocksdb,flabby/rocksdb,lgscofield/rocksdb,JoeWoo/rocksdb,biddyweb/rocksdb,Andymic/rocksdb,tizzybec/rocksdb,tsheasha/rocksdb,norton/rocksdb,geraldoandradee/rocksdb,wenduo/rocksdb,wat-ze-hex/rocksdb,SunguckLee/RocksDB,wskplho/rocksdb,zhangpng/rocksdb,zhangpng/rocksdb,lgscofield/rocksdb,biddyweb/rocksdb,siddhartharay007/rocksdb,temicai/rocksdb,caijieming-baidu/rocksdb,msb-at-yahoo/rocksdb,anagav/rocksdb,anagav/rocksdb,kaschaeffer/rocksdb,JohnPJenkins/rocksdb,temicai/rocksdb,siddhartharay007/rocksdb,rDSN-Projects/rocksdb.replicated,skunkwerks/rocksdb,Vaisman/rocksdb,tizzybec/rocksdb,wat-ze-hex/rocksdb,hobinyoon/rocksdb,JohnPJenkins/rocksdb,fengshao0907/rocksdb,Andymic/rocksdb,lgscofield/rocksdb,vmx/rocksdb,JackLian/rocksdb,fengshao0907/rocksdb,zhangpng/rocksdb,wlqGit/rocksdb,norton/rocksdb,fengshao0907/rocksdb,OverlordQ/rocksdb,anagav/rocksdb,makelivedotnet/rocksdb,skunkwerks/rocksdb,ylong/rocksdb,jalexanderqed/rocksdb,RyanTech/rocksdb,skunkwerks/rocksdb,dkorolev/rocksdb,amyvmiwei/rocksdb,luckywhu/rocksdb,vmx/rocksdb,rDSN-Projects/rocksdb.replicated,tizzybec/rocksdb,wat-ze-hex/rocksdb,Vaisman/rocksdb,vmx/rocksdb,Andymic/rocksdb,ylong/rocksdb,luckywhu/rocksdb,wlqGit/rocksdb,wskplho/rocksdb,ryneli/rocksdb,jalexanderqed/rocksdb,vmx/rocksdb,JoeWoo/rocksdb,bbiao/rocksdb,vashstorm/rocksdb,luckywhu/rocksdb,tsheasha/rocksdb,ryneli/rocksdb,wskplho/rocksdb,vmx/rocksdb,Andymic/rocksdb,IMCG/RcoksDB,dkorolev/rocksdb,norton/rocksdb,JackLian/rocksdb,kaschaeffer/rocksdb,lgscofield/rocksdb,msb-at-yahoo/rocksdb,rDSN-Projects/rocksdb.replicated,Applied-Duality/rocksdb,wat-ze-hex/rocksdb,skunkwerks/rocksdb,mbarbon/rocksdb,SunguckLee/RocksDB,biddyweb/rocksdb,geraldoandradee/rocksdb,ylong/rocksdb,tsheasha/rocksdb,alihalabyah/rocksdb,zhangpng/rocksdb,siddhartharay007/rocksdb,tsheasha/rocksdb,vashstorm/rocksdb,biddyweb/rocksdb,vashstorm/rocksdb,alihalabyah/rocksdb,JohnPJenkins/rocksdb,jalexanderqed/rocksdb,wlqGit/rocksdb,Vaisman/rocksdb,JackLian/rocksdb,Andymic/rocksdb,ylong/rocksdb,luckywhu/rocksdb,facebook/rocksdb,tizzybec/rocksdb,RyanTech/rocksdb,Vaisman/rocksdb,temicai/rocksdb,anagav/rocksdb,geraldoandradee/rocksdb,temicai/rocksdb,tschottdorf/rocksdb,mbarbon/rocksdb,ryneli/rocksdb,RyanTech/rocksdb,hobinyoon/rocksdb,hobinyoon/rocksdb,Applied-Duality/rocksdb,JoeWoo/rocksdb,wenduo/rocksdb,norton/rocksdb,NickCis/rocksdb,kaschaeffer/rocksdb,mbarbon/rocksdb,vashstorm/rocksdb,NickCis/rocksdb,SunguckLee/RocksDB,geraldoandradee/rocksdb,caijieming-baidu/rocksdb,wenduo/rocksdb,tschottdorf/rocksdb,facebook/rocksdb,tizzybec/rocksdb,facebook/rocksdb,bbiao/rocksdb,makelivedotnet/rocksdb,flabby/rocksdb,alihalabyah/rocksdb,SunguckLee/RocksDB,temicai/rocksdb,lgscofield/rocksdb,hobinyoon/rocksdb,tsheasha/rocksdb,dkorolev/rocksdb,virtdb/rocksdb,jalexanderqed/rocksdb,kaschaeffer/rocksdb,RyanTech/rocksdb,skunkwerks/rocksdb,vashstorm/rocksdb,sorphi/rocksdb,msb-at-yahoo/rocksdb,biddyweb/rocksdb,temicai/rocksdb,msb-at-yahoo/rocksdb,flabby/rocksdb,jalexanderqed/rocksdb,jalexanderqed/rocksdb,norton/rocksdb,virtdb/rocksdb,mbarbon/rocksdb,Andymic/rocksdb,RyanTech/rocksdb,wskplho/rocksdb,IMCG/RcoksDB,geraldoandradee/rocksdb,bbiao/rocksdb,luckywhu/rocksdb,fengshao0907/rocksdb,siddhartharay007/rocksdb,makelivedotnet/rocksdb,amyvmiwei/rocksdb,tizzybec/rocksdb,makelivedotnet/rocksdb,norton/rocksdb,Applied-Duality/rocksdb,RyanTech/rocksdb,NickCis/rocksdb,ylong/rocksdb,biddyweb/rocksdb,wat-ze-hex/rocksdb,fengshao0907/rocksdb,OverlordQ/rocksdb,flabby/rocksdb,SunguckLee/RocksDB,ylong/rocksdb,flabby/rocksdb,norton/rocksdb,vashstorm/rocksdb,JohnPJenkins/rocksdb,Applied-Duality/rocksdb,fengshao0907/rocksdb,NickCis/rocksdb,sorphi/rocksdb,hobinyoon/rocksdb,wat-ze-hex/rocksdb,tschottdorf/rocksdb,bbiao/rocksdb,Andymic/rocksdb,lgscofield/rocksdb,Applied-Duality/rocksdb,IMCG/RcoksDB,wenduo/rocksdb,facebook/rocksdb,norton/rocksdb,alihalabyah/rocksdb,ryneli/rocksdb,OverlordQ/rocksdb,JoeWoo/rocksdb,sorphi/rocksdb,caijieming-baidu/rocksdb,facebook/rocksdb,hobinyoon/rocksdb,amyvmiwei/rocksdb,SunguckLee/RocksDB,biddyweb/rocksdb,makelivedotnet/rocksdb,JackLian/rocksdb,rDSN-Projects/rocksdb.replicated,zhangpng/rocksdb,sorphi/rocksdb,zhangpng/rocksdb,facebook/rocksdb,Andymic/rocksdb,ylong/rocksdb,amyvmiwei/rocksdb,alihalabyah/rocksdb,tsheasha/rocksdb,caijieming-baidu/rocksdb,siddhartharay007/rocksdb,wlqGit/rocksdb,wlqGit/rocksdb,dkorolev/rocksdb,wlqGit/rocksdb,IMCG/RcoksDB,msb-at-yahoo/rocksdb,kaschaeffer/rocksdb,ryneli/rocksdb,NickCis/rocksdb,virtdb/rocksdb,tsheasha/rocksdb,JackLian/rocksdb,wenduo/rocksdb,tschottdorf/rocksdb,bbiao/rocksdb,wenduo/rocksdb,JohnPJenkins/rocksdb,Vaisman/rocksdb,geraldoandradee/rocksdb,dkorolev/rocksdb,wskplho/rocksdb,Vaisman/rocksdb,amyvmiwei/rocksdb,mbarbon/rocksdb,caijieming-baidu/rocksdb,skunkwerks/rocksdb,bbiao/rocksdb,bbiao/rocksdb,lgscofield/rocksdb,JohnPJenkins/rocksdb,NickCis/rocksdb,anagav/rocksdb