When a user focuses on the overflow menu button and presses spacebar, the overflow menu. If they press space again, it should close. However, the MediaControlsWindowEventListener sees the click event first and calls MediaControlsImpl::HideAllMenus, hiding the overflow menu button. So when the overflow menu button gets the click, it ends up re-showing the overflow menu
Comment 1 by steimel@chromium.org
, Mar 12 2018