Merge "Add padding for PlaceholderTitle" into udc-dev am: 990541dc am: d1e5f4af am: de0d21b8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23406959



Change-Id: Ib5a6638b902227e888610c9fee8d764cbbdc4439
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>