> qt_drt_setTimelineProfilingEnabled is incorrectly named. Don't use underscores
> in your identifier names. [readability/naming] 
This function naming style is in use for extern functions in Qt WebKit used by Qt's DRT.
See http://trac.webkit.org/browser/trunk/WebKit/qt/Api/qwebframe.cpp#L90 and co.
*** This bug has been marked as a duplicate of bug 33663 ***