Daniel van Vugt, please cancel your changes and make another bug report about your problem. I am not using Compiz. I am using Xfce. Tearing happens also when playing smaller than full screen video. Besides, I am not using hardware acceleration in Chromium's setting, because of Bug #1409332. However, I noticed, that tearing diminished, if I enabled xfwm4's display compositor in Window Manager Tweaks.
Daniel van Vugt, please cancel your changes and make another bug report about your problem. I am not using Compiz. I am using Xfce. Tearing happens also when playing smaller than full screen video. Besides, I am not using hardware acceleration in Chromium's setting, because of Bug #1409332. However, I noticed, that tearing diminished, if I enabled xfwm4's display compositor in Window Manager Tweaks.