Merge "Ensure embedded window's channel is not disposed before being duped"...

Merge "Ensure embedded window's channel is not disposed before being duped" into udc-qpr-dev am: fd074620

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23494574



Change-Id: Ie449eb54cfe343382587a6a9814dca044a5d7a4b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>