Code review comment for lp:~vanvugt/unity/regionalDamage

I guess you can even remove this now

const std::string REDRAW_IDLE = "redraw-idle";

in: if (launcher_controller_.get()) no need for .get().

Overall looks good...

PS: pay attention to style, i.e.:
 bool UnityScreen::shellIsHidden(const CompOutput &output) -> bool UnityScreen::ShellIsHidden(CompOutput const& output)
 const std::vector<Window> &nuxwins(nux::XInputWindow::NativeHandleList()); -> std::vector<Window> const& nuxwins(nux::XInputWindow::NativeHandleList());