tree cbd8a8b7b7d6a2ee4b779dbf6a88bf3b643632dc
parent 153d424cb66f96269d94492fcbfe37359f625a93
author Evan Severson <evanseverson@google.com> 1567122627 -0700
committer Evan Severson <evanseverson@google.com> 1567194344 -0700

Implement persistent permissions for Usb devices

Previously a package could only get automatically granted USB
permission for a given device if it was the default app to launch
when the device is connected. This means only one package can
be granted automatically and it must be started on connection.

This change introduces a new usb permission mechanism which is meant
to separate the auto launch from usb permission so that multiple
packages can have permission without prompting the user.
The temporary usb permissions still work.

Test: edit usb_permissions.xml on device to allow, reboot,
      connect usb headphones, deny launch dialog, open test app,
      assert usb permission already granted.
Test: Check complement behavior to previous test, assert permission
      not granted by default if not in usb_device_manager.xml or
      explicitly denied in usb_device_manager.xml.
Bug: 136496922
Change-Id: I005d7470f1e6642d683c953a914f65f16ff7e1bb