When we have the Content-Length value it is possible to infer the TIME duration in most cases by performing a convert query in the downstream elements. This is especially useful when the duration query wasn't managed by the sinks and thus reached the source element.
Created attachment 282231 [details]
Attachment 282231 [details] did not pass style-queue:
ERROR: Source/WebCore/platform/graphics/gstreamer/WebKitWebSourceGStreamer.cpp:682: Extra space before ( in function call [whitespace/parens] 
Total errors found: 1 in 2 files
If any of these errors are false positives, please file a bug against check-webkit-style.
Created attachment 282233 [details]
Committed r202556: <http://trac.webkit.org/changeset/202556>
Re-opened since this is blocked by bug 159399