Author: Mihail Geshoski
MDL-61948 core_media: Implement null privacy provider
http://git.moodle.org/gw?p=moodle.git;a=commit;h=0f4c592b5c03b4241ed2e3bc5e614e49f348f631
http://github.com/moodle/moodle/commit/0f4c592b5c03b4241ed2e3bc5e614e49f348f631
+ 3.3 en [privacy:metadata,core_media]