I'd be very surprised if Chrome didn't blacklist nouveau; perhaps you're overriding this behavior with a command-line flag? Visit about:version to check.
And no, I'm not overriding anything, it's always just worked.
Edit: In fact, doing a quick grep through the shipviewer.js file, they're only using GL_ARB_texture_cube_map plus a bit of framebuffer drawing, both of which are fairly standard things and should be supported by gallium. No idea what the issue might be..
The engine lights do look pretty though.