Merge "Fix IOOBE in forAllLeafTasksAndLeafTaskFragments" into sc-v2-dev am: 57f0866d49

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15480932

Change-Id: I2b8e20c89540740a72baf55f2fd91e3a4bc9b576