[promise] writing detailed spec of ProgressPromise & implementing it

Hi,

We're planning to make ProgressPromise spec more detailed and implement it
on Blink experimentally.
ProgressPromise is planed to be used for some APIs, such as XMLHttpRequest
/ FileAPI.

Please feel free to comment about this.

Thank you,
Yusuke Suzuki

Received on Thursday, 8 August 2013 12:55:32 UTC