Changes all URL attachments which point to a local file in component to inline attachments, aka adds the file content into
the component.
It also populates FILENAME parameter on the attachment. This is called automatically before save_component_sync.
The reverse operation is store_inline_attachments_sync.
| this | |
| component |
an Component to work with |
| cancellable |
optional Cancellable object, or null |
|
Whether succeeded. |