getrealpan - Handle 401 Unauthorized

getrealpan - Handle 401 Unauthorized

On the first 401 Unauthorized, invalidate the oauth token and try again. If there is more than one 401 Unauthorized in a row, we're probably borked, so don't keep retrying.

BUG=none

Committed: https://crrev.com/7e17b6be0609934a2c07cee5a2f79012e8f515ce
Cr-Commit-Position: refs/heads/master@{#318572}

[Evan Stade, 2015-02-27 23:17:42]

estade@chromium.org changed reviewers:
+ brettw@chromium.org

[brettw, 2015-02-28 00:35:50]

lgtm

[Evan Stade, 2015-02-28 00:37:35]

The CQ bit was checked by estade@chromium.org

[commit-bot: I haz the power, 2015-02-28 00:39:21]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/966943004/20001

[commit-bot: I haz the power, 2015-02-28 02:09:38]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-02-28 02:10:17]

Patchset 2 (id:??) landed as
https://crrev.com/7e17b6be0609934a2c07cee5a2f79012e8f515ce
Cr-Commit-Position: refs/heads/master@{#318572}