gtksocket: Adjust X sizes by scale-factor

X uses unscaled sizes, so they must be scaled properly. Otherwise
GtkSockets end up twice as big as they should be.

Closes: https://bugzilla.gnome.org/show_bug.cgi?id=765327
Signed-off-by: Jason Zaman <jason@perfinion.com>
1 job for gtksocket-scale-3-24 in 2 minutes and 30 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Build
failed #36677
build

00:02:30

 
Name Stage Failure
failed
build Build
Package 'pango' has version '1.40.13', required version is '>= 1.41.0'

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables BASE_DEPENDENCIES_CFLAGS
and BASE_DEPENDENCIES_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.
ERROR: Job failed: exit code 1