Call XSetInputFocus after XRaiseWindow when activating.

ui/views/widget/desktop_aura/x11_desktop_handler.cc

Index: ui/views/widget/desktop_aura/x11_desktop_handler.cc
diff --git a/ui/views/widget/desktop_aura/x11_desktop_handler.cc b/ui/views/widget/desktop_aura/x11_desktop_handler.cc
index 3a14e04c076cebcbace6271db290e940ef144ef7..9e2c62962f731833e1f0a121993edee2ab50d9ae 100644
--- a/ui/views/widget/desktop_aura/x11_desktop_handler.cc
+++ b/ui/views/widget/desktop_aura/x11_desktop_handler.cc
@@ -94,6 +94,12 @@ void X11DesktopHandler::ActivateWindow(::Window window) {
                &xclient);
   } else {
     XRaiseWindow(xdisplay_, window);
+
+    // XRaiseWindow will not give input focus to the window. We now need to ask
+    // the X server to do that. Note that the call will raise an X error if the
+    // window is not mapped.
+    XSetInputFocus(xdisplay_, window, RevertToParent, CurrentTime);
+
     OnActiveWindowChanged(window);
   }
 }