Merge "Add content fade to notification dismissal" into tm-qpr-dev am: 99f5cefd am: 64a9cdfd

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19900962



Change-Id: Ica081369833b160f45c549457159b16d62973b8c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>