www-client/chromiun (www-client/chromium-bin) need the icon theme package x11-themes/gnome-icon-theme for displaying icons in the download list. Reproducible: Always Steps to Reproduce: 1.emerge www-client/chromium-bin without gnome have been installed
Thanks for the report (and the solution)! x11-themes/gnome-icon-theme added in RDEPEND to latest chromium and chromium-bin 4.0.240.0 ebuilds
Actually, any another gtk icon theme may be installed. For example, x11-themes/tango-icon-theme. But when bug had been reproduces, I had none installed. x11-themes/gnome-icon-theme uses as a fallback in /etc/gtk-2.0/gtkrc even this theme is absent. Therefore this dependence may be useless. Needs a virtual package virtual/gtk-icon-theme or just a ewarn (elog) message about the configuring default icon-theme in ~/.gtkrc-2.0 or install the default one: x11-themes/gnome-icon-theme
Feel free to reopen if you have additional comments.