What is the difference between privapp-permissions.xml in system/etc/permissions and default-permissions.xml in system/etc/default-permissions?
For refernce: https://github.com/opengapps/opengapps/issues/518#issuecomment-355230967
The link didn't understand properly.
private permissions are permissions declared in platfrom with system|signatured flags. dangerous permissions are runtime permissions should be granted by users.