346acb123d
Two distinct changes: Fix a bug seen in the wild where a newly-launched application will be spuriously asked to instantiate a backup agent. What was happening there is that some Activity Manager state was being left stale in certain circumstances, and then in combination with app uninstall / install, there could be a case where uid reuse wound up looking like an app identity match. We now positively verify before instantiating the agent that the intended backup target package is uid-compatible with the app process that the instantiation was requested of. The incomplete bookkeeping in the Activity Manager has also been tightened up, and the Backup Manager is more aggressive about cleaning up pending operations pertaining to apps being uninstalled. Bug 5874010 Change-Id: Ic389f4a96c9dcd0ba6b3962b579084033d8ae9f8