Merge "Add ability to enforce limits on docs per package and size of doc." into sc-dev am: 733537f1a6 am: 85d818fefc

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15177523

Change-Id: I84884d5d279a4431b5aa2321425d6eed4bfb4ef6