DO NOT MERGE: IpConnectivityMetrics: rate limit ApfProgramEvents am: f99a33a1b4  -s ours am: 6765bc08d0  -s ours am: 44675b01b1
am: 0b84a7310f  -s ours

Change-Id: Ia453e3c806be8f58ff96e4b760de1c6a41cc8757