The parameter $size of the following functions has been deprecated and is not used any more:
- file_extension_icon
- file_file_icon
- file_folder_icon
- file_mimetype_icon
- mimeinfo_from_type
- url_guess_icon
That way, the sized icons (xxxxxxx-yyy.png) can be removed and replaced by SVG, to make it easier
to keep them updated because once they are replaced, there will only be one single file for each
MIME icon.
This introduces a new "controlled link" file type where the file is not
stored in Moodle - but Moodle will control the access permissions on the file.
Plugins can "freeze" a filearea which means Moodle will take ownership of all the remote
files of this type.
When accessing a file, if the "filebrowser" infomation indicates the current user can write to the file, they
will be granted temporary write access.
Part of MDL-58220
