Set the application name

This CL sets the application name so that it is easier to look up
mtplot in the window manager.

BUG=chromium:216295
TEST=Follow steps below:
$ mtplot -d :0
$ DISPLAY=:0 xwininfo -root -tree

It would show something like
     0x600001 "mtplot": ()  1280x800+0+0  +0+0
rather than
     0x600001 (has no name): ()  1280x800+0+0  +0+0

Change-Id: Ifd8de8b72e566d31eb98c4e8f4c96c83084b7d68
Reviewed-on: https://gerrit.chromium.org/gerrit/32219
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Tested-by: Joseph Shyh-In Hwang <josephsih@chromium.org>
Commit-Queue: Joseph Shyh-In Hwang <josephsih@chromium.org>
1 file changed