Merge "ignore call streaming msgs if the adapter is destroyed/not set" into udc-dev am: 7232768442 am: 2a5257991d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22726055

Change-Id: Ic6dfa9f8500e36d90446e478d7dd3a86908a7a59
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>