[1] Web Applications 1.0 r7824 Move FileCallback into the spec rather than referencing File System API just for that. ( (2013-04-13 08:10:00 +09:00 版)) http://html5.org/tools/web-apps-tracker?from=7823&to=7824

[2] Rename FileCallback to BlobCallback (used by canvas.toBlob()) · whatwg/html@6c334ac (2015-12-11 12:01:45 +09:00 版) https://github.com/whatwg/html/commit/6c334ac29cfe698fed5b5281dda4ff34c39112b9