Code review comment for lp:~andreas-pokorny/mir/load-all-supported-input-platforms

Also, in the following scenario:

$ sudo bin/mir_demo_server --window-manager system-compositor --display-config sidebyside --vt 1 --arw-file
$ bin/mir_demo_server --host /tmp/mir_socket --display-config clone --window-manager tiling
$ bin/mir_demo_client_egltriangle

I find that Alt+middle-button+drag seems intermittently to not work (neither resizing nor moving the cursor).