Merge "[VolumePanel] Move the Settings' volume panel into a SystemUIDialog" into tm-qpr-dev am: 16219f2ea4 am: 154a6a50b7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19482609

Change-Id: Ifbcfdd270d34df3216e0ef6bd5e8f6415e8cb433
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>