Merge "Show the overflow expanded view in bubble bar" into udc-qpr-dev am: bce8f132

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23750365



Change-Id: I23bffddcd2abbb7aa92f7104b4d72af7b3e70fad
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>