If leasing task expired then mark it as successfully completed
If leasing task expired then mark it as successfully completed

Bug: skia:7098
Change-Id: Ia79e7a60c6e9b955b9341f88f3677d8284b5bab6
Reviewed-on: https://skia-review.googlesource.com/67805
Reviewed-by: Kevin Lubick <7cdab2cfab351f23814786ba39716e90eed69047@google.com>
Commit-Queue: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot