1af33d0ddc
Adds android.os.RecoverySystem (marked as pending) to replace the (hidden) com.android.internal.os.RecoverySystem. RecoverySystem contains methods for: - verifying the signature of an update package - rebooting to install a package - rebooting to wipe user data (The reboot functions require "android.permission.REBOOT" and "android.permission.ACCESS_CACHE_FILESYSTEM".) Providing these simplifies implementation of OTA update for device builders. Change-Id: I63ce743b156e7a1a0327fd395b0e4a82c0eda79a