Whenever Google Chrome gets updated at upstream, my google-chrome ebuild (the installed binary) stops working. Distorted rendering, to be short. Since no other software on my computer shares these problems, not even google-chrome-beta, and it is always fixed as soon as an update is installed, I consider this behaviour is intended by upstream. Pls consider either updating the ebuild in pace with upstream, or confronting the "don't be evil"-guys.
We already try to do it at pace. If you really don't trust Google though, don't use binaries from them.