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: bc2889cb am: 65bb515e

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

Change-Id: I78037d4848bdbb7d1ef153c2e6c4fa0e59b9ee63