[automerger skipped] Prevent apps from spamming addAccountExplicitly. am: 551d70e1c8 am: 662fcc58ef -s ours am: 9290f7b31f -s ours am: ef4197a103 -s ours am: 4b8d2c671b -s ours am: 2156e47248 -s ours am: b6fcb99b1e -s ours

am skip reason: skipped by user aseemk

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15624525

Change-Id: Ibf0d7358f8d65acf38bcb41eecf59d6beae8ef39