Merge "Let the client know the initial visibility of an InsetsSourceControl"...

Merge "Let the client know the initial visibility of an InsetsSourceControl" into tm-qpr-dev am: b4a6c4bf

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19379426



Change-Id: I57ac6c65931c46a1fa7423031b4b78193838e594
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>