Merge "Fix NullPointerException in AccessibilityServiceConnection#dispatchGesture" into sc-dev am: e463a7d4 am: 5308577d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13612046

Change-Id: I5292a7c5d39f1865f4414e1d059dea1d44dd9e5b