[mac] Don't consider kAutoupdateCheckFailed as a permanent failure.

BUG=142416
TEST=Verify that a canary build will re-check the version after an update check failure (usually error 12).

Review URL: https://chromiumcodereview.appspot.com/10830295

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@151553 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/webui/help/version_updater_mac.mm

@@ -77,9 +77,6 @@ void VersionUpdaterMac::CheckForUpdate(
     AutoupdateStatus recent_status = [keystone_glue recentStatus];
     if ([keystone_glue asyncOperationPending] ||
         recent_status == kAutoupdateRegisterFailed ||
-        recent_status == kAutoupdateCheckFailed ||
-        recent_status == kAutoupdateInstallFailed ||
-        recent_status == kAutoupdatePromoteFailed ||
         recent_status == kAutoupdateNeedsPromotion) {
       // If an asynchronous update operation is currently pending, such as a
       // check for updates or an update installation attempt, set the status