I had Chromium from the openSUSE “Contrib” repository. A recent upgrade of Chromium from that repo installed this version: chromium-15.0.854.0-3.1.x86_64
Unforunately that version carries a bug whereby clicking the X on open tabs does not close the tab.
The problem is solved by installing the version of Chromium that is found in the special Tumbleweed repo for Chromium, at this address:
They’re working on it. CPU usage in the 859 build is still horribly high. Raymond Wooninck posted in one of the other threads on Chromium. It affects all versions.
Tabs closing is working for me. I updated to the latest version from network:/chromium/openSUSE_Tumbleweed today and I didn’t notice any excessive cpu usage.