Move the certificate verification errors to common_cert_errors.{h,cc}.

This makes them inspectable by consumers, and also documents them.

Change-Id: Ic73f820620dda00ef82fcf6c291919e78b49648f
Reviewed-on: https://chromium-review.googlesource.com/585832
Commit-Queue: Eric Roman <[email protected]>
Reviewed-by: Matt Mueller <[email protected]>
Reviewed-by: Luke Halliwell <[email protected]>
Cr-Commit-Position: refs/heads/master@{#490510}
11 files changed