tree e3744b664f5ba3f541d42e6292045fd8a9a7c0f1
parent dd23fbd1ef89f0debb29072153fab19ebf22fe50
author Aurimas Liutikas <aurimas@google.com> 1466631618 -0700
committer Aurimas Liutikas <aurimas@google.com> 1466709452 +0000

Add more pointer validation check to ViewDragHelper.

Adding isPointerDown checks before modifying mInitialMotionX
and mLastMotionX arrays.

clearMotionHistory gets called on ACTION_POINTER_UP so there is
nothing to clear if we never got ACTION_POINTER_DOWN.

Merging to master manually as it has merge conflict due to support
library refactoring.

Bug: 29561625
Change-Id: I39c28dc58e0e96602d160c7168f5d555c147d27c