Google is looking to change the policy of the Chrome Root Store (used by Chrome to verify TLS certificates that protect websites and other services) to require "that applicants seeking inclusion in the Chrome Root Store must support automated certificate issuance and management". They can still provide a manual method for sites that want to get certificates the old way but they will need to have some kind of automated method available.

other discussions
 

Upcoming Policy Changes

One of the major focal points of Version 1.5 requires that applicants seeking inclusion in the Chrome Root Store must support automated certificate issuance and management. [...] It’s important to note that these new requirements do not prohibit Chrome Root Store applicants from supporting “non-automated” methods of certificate issuance and renewal, nor require website operators to only rely on the automated solution(s) for certificate issuance and renewal. The intent behind this policy update is to make automated certificate issuance an option for a CA owner’s customers.