Merge "Use insetsRoundedCornerFrame to identify taskbar insets source" into udc-dev am: b2eae6ca

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21505461



Change-Id: Ie8779c67fc228b23e927e46b6b382270b510f62b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>