Merge "Reset notification shade background tints when theme changes." into tm-d1-dev am: abf75512

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18868865



Change-Id: Ifc04ca42ae90be1ab91d4dfc5e46c1cadedfd061
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>