Creates and returns a new instance of the WebPermission class.
Assembly: System (in System.dll)
The CreatePermission method is called by the security system, not by application code.
The security information described by WebPermissionAttribute is stored in the metadata of the attribute target, which is the class to which WebPermissionAttribute is applied. The system accesses the information at run time. The system uses the WebPermission returned by CreatePermission to convert the security information of the attribute target to a serializable form stored in metadata.