[automerger skipped] Merge "Document the limitation to a hundred callbacks." into rvc-dev am: 8aafdcc3 -s ours am: e6527eef -s ours

am skip reason: Change-Id I5911d01984695550b6c9afe7a8eb535bf5e320a1 with SHA-1 c022b0c7 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11835429

Change-Id: I51aaef47a6e94d53a744b80fc684cd6fda6ec73c