I use olvwm as my window manager for many years. I know is a very old WM
and out of interest but because is a historic piece in the X11 development,
I think you may invest a few effort to solve the iconify problem of the
Chromium window. In OpenWindows Chromium works nice and the Web Apps
Integration too (I have to put the entries in the menu for myself, but this
is another history). The problem to solve is just the icon size & icon text
and the maximize or restore window function. I know OpenWindows is obsolete
but i am sure many developers of Chromium remember these days and that the
problem could be resolved with a few lines of code. Just for test olvwm can
be instaled with apt-get in Ubuntu in a few minutes. Thanks and sorry for
my ugly English from Spain
PD: CDE is now open source and I think have the same problem
http://cdesktopenv.sourceforge.net/