Chrome Version       : 50.0.2661.94 (Official Build) (64-bit)
URLs (if applicable) :
Other browsers tested:
  Add OK or FAIL, along with the version, after other browsers where you
have tested this issue:
     Safari:
    Firefox: FAIL
         IE:

What steps will reproduce the problem?
(1) Connect to a website over TLS that supports AES-256-GCM as only AEAD
(2)
(3)

What is the expected result?
AES-256-GCM is negotiated

What happens instead?
AES-256-GCM is not negotiated

Please provide any additional information below. Attach a screenshot if
possible.

Some websites need (or think they need) 256-bit connection security, or may be required to have >128 bit security by regulation (not sure if there are any).  These should be allowed to use AES-256-GCM, even if it is not preferred.  It is still much better than AES-256-CBC and when support for the latter is removed Chromium will not be able to connect to these sites.