I just installed Ubuntu 11.04 beta 1 and then installed Chromium and it is working fine with buttons displayed. Have you updated to the latest packages?
I also noticed that changing the theme to dust makes the minimize and maximize buttons disappear. ** Changed in: unity (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/761430 Title: titlebar buttons chromium gone in full screen mode -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs