Unsafe Protected BroadcastReceiver

Unsafe Protected BroadcastReceiver

`BroadcastReceiver`s that declare an intent-filter for a protected-broadcast action string must check that the received intent's action string matches the expected value, otherwise it is possible for malicious actors to spoof intents.

Issue id: UnsafeProtectedBroadcastReceiver

https://goo.gle/UnsafeProtectedBroadcastReceiver