[FileAPI] [ttfw shanghai 2013]Progress events test for File API (#294)

It's a progress events test for FileReader:
* The event fired every 50ms.
* The event fired at least once when succeed whatever how small the file size was.

View on GitHub: https://github.com/w3c/web-platform-tests/pull/294

Received on Sunday, 18 August 2013 10:21:08 UTC