[automerger skipped] Merge "Merge "Allow overlays to be notified about theme...

[automerger skipped] Merge "Merge "Allow overlays to be notified about theme changes" into sc-qpr1-dev am: 45319d55" into sc-v2-dev am: 2d3b062d -s ours am: 8b3c4009 -s ours

am skip reason: Merged-In Ie52b8c55a046d150dd30aae5fabb279b53a959f5 with SHA-1 851650db is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15590962

Change-Id: I8246638c17fe5c6874967c108cf4dbc03ff8ad41