Merge "Prevent desktop mode corner handles from triggering back gesture." into...

Merge "Prevent desktop mode corner handles from triggering back gesture." into udc-dev am: 331d9987

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22559547



Change-Id: Idee4d24c59b6f4e242d506aac448d3cb882c3ed8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>