test/trace_processor/chrome/cpu_time_by_combined_rail_mode.out

"id","ts","dur","rail_mode","cpu_dur"
1,0,10000,"response",26000
2,10000,20000,"animation",20000
3,30000,5000,"background",8000
4,35000,10000,"animation",21000
5,45000,10000,"background",1000