tree b0e5cda5aa7aa9915b9bf64a57f66ea28750cb78
parent e1a8662792260953efe05fd991d945e508298aa8
author Mathieu Chartier <mathieuc@google.com> 1409804796 -0700
committer Mathieu Chartier <mathieuc@google.com> 1409851895 -0700

Fix heap trimmer daemon sleeping.

Problem:
Heap trimmer daemon sleeping caused app launch occasionally to take a
while due stopping the heap trimming thread taking a long time.

The heap trimmer thread now never sleeps, we prevent issues caused
by frequent back and forth process state changes by only
transitioning to background if it has been kCollectorTransitionWait
time since the last transition to background. Similar logic for heap
trimming.

Bug: 17310019

Change-Id: I23980421cc388f36b66a4c03ed15dd11d43f59b5