Merge "Update javadoc to reflect "autofill for all apps" changes." into udc-dev am: 6ddd968181 am: 8c293473ac

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23066001

Change-Id: Ie6828c50ea3a5116f5241a919a0e5b6976715f78
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>