System apps are now installed under their own directory
(system_app_dir/app_dir/app.apk). The new path doesn't pass installd
validation because of obsolete checks which verify that the path does
not contain subdirectories past the system_app_dir.
The CL fixes the validation to accept at most on subdirectory.
Bug: 17109858
Change-Id: I13abb52c0016610ff436f6a26bb6b3b85dc4dfb0
In the current directory layout this prevented rm_dex and move_dex
commands to validate the apk path and thus cleaning up resources.
Bug: 16888084
Change-Id: Iba579d075a9c6d7de047e7ffef95441498257086
