Merge "Classify group summaries as a special kind of style" into udc-qpr-dev...

Merge "Classify group summaries as a special kind of style" into udc-qpr-dev am: 67f9627b am: 1fc2f4e6

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24372057



Change-Id: Ie6f84f5f6716c2dafaa572818c92ca5e70a22a3b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>