Add average/90th pct search latency for 1 hour window

Looks like a big change, but it's just moving everything
up by 1 so I could have a new s-1 and s-2

Change-Id: I36e81924487f54a492c16d9ed42f7e1b6b36f12f
Merge "Add average/90th pct search latency for 1 hour window" into production