Google Chrome before 4.1.249.1036 does not have the expected behavior for attempts to delete Web SQL Databases and clear the Strict Transport Security (STS) state, which has unspecified impact and attack vectors.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14292
http://googlechromereleases.blogspot.com/2010/03/stable-channel-update.html