Fix a regression with writing "version" instead of "error" when updat…

…e checks produce an error.

R=thomasvl@chromium.org,mark@chromium.org,ryanmyers@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1875823002

Cr-Commit-Position: refs/heads/master@{#386283}

chrome/browser/mac/keystone_glue.mm

@@ -760,11 +760,11 @@ - (void)updateStatus:(AutoupdateStatus)status
   NSMutableDictionary* dictionary =
       [NSMutableDictionary dictionaryWithObject:statusNumber
                                          forKey:kAutoupdateStatusStatus];
-  if (version) {
+  if ([version length]) {
     [dictionary setObject:version forKey:kAutoupdateStatusVersion];
   }
-  if (error) {
-    [dictionary setObject:version forKey:kAutoupdateStatusErrorMessages];
+  if ([error length]) {
+    [dictionary setObject:error forKey:kAutoupdateStatusErrorMessages];
   }
 
   NSNotification* notification =