BackupHelpers: Fix Typo

delete --> free

Change-Id: Idbf7e677f8cc4a9a9d04e58b5cf7d0f1589c5211
remove some lag launching apps and improve scrolling

Change-Id: Ib10c11a1a3a798e57ddd31f550461b9ebd17bc38

Conflicts:
	core/java/android/widget/AbsListView.java
Derp!