"privilegeExecution" field will specify if protocol can perform file operation with elevated privileges.
Dolphin relies on KFileItemListProperties for enabling some of its context menu actions. Internally KFileItemListProperties uses KProtocolManager to determine if a location supports reading, writing,
deleting and moving. With these changes KProtocolManager will now check for the said field. Consequently, dolphin will be aware of our new file protocol and will show its context menu without any
action being disabled.