Asynchronously stops a drive.
When the operation is finished, callback will be called. You can then call stop.end to
obtain the result of the operation.
| this |
a Drive. |
| flags |
flags affecting the unmount if required for stopping. |
| mount_operation |
a MountOperation or null to avoid user interaction. |
| cancellable |
optional Cancellable object, null to ignore. |
| callback |
a AsyncReadyCallback, or null . |
| user_data |
user data to pass to |