tree 77c113e02c21e87eb4cc1d3520473bc31768d45a
parent 987b505b1c190ff0e5a05d2cc20c9b08d2b99b18
author Hung-ying Tyan <tyanh@google.com> 1309523555 +0800
committer Hung-ying Tyan <tyanh@google.com> 1309526436 +0800

Keep last known keepalive interval to avoid duplicate effort.

The current implementation always starts with default minimum interval when
the measurement process starts. By keeping last known good interval, we can
save the time in re-measurement.

Change-Id: I8f1720acafaa7e101855fe0c66d5c7b0e578e0d7