Instead of making the browser cookie expire when the browser ends, let the cookie be persistent and expire at the same time as the session ends. If administrators want their users to authenticate, they should lower the session timeout to a smaller inactivity window. Bug: issue 555 Change-Id: I0563588164f49706685aebef82adfae21d428ab5 Signed-off-by: Shawn O. Pearce <sop@google.com>