4cc86e1ae8
Turning off backup in the Settings UI constitutes an opt-out of the whole mechanism. For privacy reasons we instruct the backend to wipe all of the data belonging to this device when the user does this. If the attempt fails it is rescheduled in the future based on the transport's requestBackupTime() suggestion. If network connectivity changes prompt the transport to indicate a backup pass is appropriate "now," any pending init operation is processed before the backup schedule is resumed. The broadcasts used internally to the backup manager are now fully protected; third party apps can neither send nor receive them. (Also a minor logging change; don't log 'appropriate' EOF encountered during parsing of a backup data stream.)
Android Utility Function Library If you need a feature that is native to Linux but not present on other platforms, construct a platform-dependent implementation that shares the Linux interface. That way the actual device runs as "light" as possible. If that isn't feasible, create a system-independent interface and hide the details. The ultimate goal is *not* to create a super-duper platform abstraction layer. The goal is to provide an optimized solution for Linux with reasonable implementations for other platforms.