duration         1878 Source/core/html/HTMLMediaElement.cpp double HTMLMediaElement::duration() const
duration          133 Source/core/html/MediaController.cpp double MediaController::duration() const
duration           64 Source/core/timing/PerformanceEntry.cpp double PerformanceEntry::duration() const
duration          123 Source/modules/mediasource/MediaSourceBase.cpp double MediaSourceBase::duration() const
duration          263 Source/web/WebMediaPlayerClientImpl.cpp double WebMediaPlayerClientImpl::duration() const