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When nickname management is disabled, hide the new error message.

When nickname management is enabled, we will hide the legacy error message,
and use the new expired error message format.
When expired, display error message below the dropdown.
Also change the expiration date label's color when expired.
Note that for valid expiration, we don't hide the message, we set
visibility of the error message to hidden in order to reserve the space.
(Same behavior as the cr-input).

Bug: 1082013
Change-Id: Id61262ea315bce62ffa5aa4b3bffa26aff3f2632
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2223151
Commit-Queue: Sujie Zhu <sujiezhu@google.com>
Reviewed-by: dpapad <dpapad@chromium.org>
Reviewed-by: Jared Saul <jsaul@google.com>
Cr-Commit-Position: refs/heads/master@{#774446}