Adds resume() function

o Revived resume() function to fix pause/resume bug. (Bug: 6663740)
o Mannually cherry-picked from GTV change.
(commit: ad1197226d1c6745959f0e469f510ca06f99489f)

Change-Id: I77ac90085fb1f1d2e7eb706642978a4fa4d28b49
4 files changed