UMA log the count of clients with auth error and clients that have fixed the auth error.

BUG=315256
R=asvitkine@chromium.org, rlarocque@chromium.org, rlp@chromium.org

Review URL: https://codereview.chromium.org/59623006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233620 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233620