tree a8f6f50c35520957188958952fa17935f2624dc6
parent bf143069fc5b7526ea79d4283293878a2ebe99ee
author Mathieu Chartier <mathieuc@google.com> 1427844533 -0700
committer Mathieu Chartier <mathieuc@google.com> 1427844586 -0700

Only GC the first time we call PreZygoteFork

PreZygoteFork is called for every app launch, it is overkill to GC
each time since it takes 20-30ms and blocks app launch for that long.

Change-Id: I647c8ccca767ceca67a006c1d80a739c7860f0d0