Dynamic Large Object sleeps too much

DLO is supposed to sleep 1 second per segment after 10 (default) initial
segments are loaded to prevent abuse of the system. Currently, if the user
did a range request to the 11th segment the 1 sec delay would start immediately
on the 11th segment because the skipped segments were counted as initial
segments. This path fixes that.

Change-Id: I53bbc24af54921ddc04d9cb3b704366b51b3f740
Merge "Dynamic Large Object sleeps too much"