QtMultimedia_5.3_Integration #39: SUCCESS Tested changes (refs/builds/5.3_1412063338): http://codereview.qt-project.org/95733 [PS1] - WMF: Use media source only when it is initialized. http://codereview.qt-project.org/95270 [PS2] - WMF: Fix null ptr derefernce in MFPlayerSession.