[Webkit-unassigned] [Bug 67229] ThreadableLoaderClient should support 'didDownloadData' updates

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=67229





--- Comment #4 from Darin Fisher (:fishd, Google) <fishd at chromium.org>  2011-08-30 15:45:41 PST ---
The Chromium ResourceHandle knows how to download to disk (to a temporary file).  I believe that other ports do not need this functionality.  However, it could be generally useful.  It could help us implement XMLHttpRequest.responseType("blob").  It could help us implement NPAPI StreamToFile better (without requiring WebCore to produce a temporary file).  (This is something that Chromium already does for NPAPI.)

We need this change to support the Chromium WebKit API (WebURLLoader returned via WebFrame::createAssociatedURLLoader).  We need to plumb this notification through the DocumentThreadableLoader.

You can think of didDownloadData as the response equivalent of didSendData, which all ports generate to produce upload notifications.  XMLHttpRequest.responseType("blob") will need download progress events.  So, this patch seems like a good step forward.

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