Merge "Use "collapsible indent" for actions of any notification type." into...

Merge "Use "collapsible indent" for actions of any notification type." into sc-dev am: fd4d01d8 am: dd894de1 am: b0e27f93

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14647511

Change-Id: I6ef6f53d6ba12cabedd6f560857deb4e571ba54a