This step installs Libatomic and sets up a symbolic link so the Chromium will find it.
dpkg -x libatomic*.deb libatomic
This shows you that the library file is actually named libatomic.so.1.1.0 and that libatomic.so.1 is a symbolic link to it. We will recreate the link on the thin client later.
ln -s libatomic.so.1.1.0 libatomic.so.1
Now Libatomic is set up to be used by Chromium.