shiny/driver: s/WM_NAME/_NET_WM_NAME/ for X11.

https://specifications.freedesktop.org/wm-spec/latest/ar01s05.html#idm139870830016992
says that modern window managers should prefer the latter to the former.
The former might also have difficulties with non-ASCII UTF-8.

Also fix a recently introduce build breakage.

Change-Id: Id6da9aa23ad356d7e485925734c28d891be0f2fc
Reviewed-on: https://go-review.googlesource.com/37413
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
3 files changed