[automerger skipped] [DO NOT MERGE] Keep track of audio recordings that are silenced am: a059a46d am: 4a82f92f -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12327506

Change-Id: I500b6a825da41d9973fa4d191fe005aadfb3b082