Uselessly use the uniformity field trial.

chrome/browser/chrome_browser_main.cc

Index: chrome/browser/chrome_browser_main.cc
diff --git a/chrome/browser/chrome_browser_main.cc b/chrome/browser/chrome_browser_main.cc
index 13c414b92a347fbea9507408a43fa7f417883cbf..4c666e7a8016f4b4cf9531f042ea3265a28c4b19 100644
--- a/chrome/browser/chrome_browser_main.cc
+++ b/chrome/browser/chrome_browser_main.cc
@@ -1082,6 +1082,11 @@ void ChromeBrowserMainParts::SetupUniformityFieldTrials() {
       experiments_helper::AssociateGoogleExperimentID(trial_name, group_name,
           static_cast<chrome_variations::ID>(trial_base_ids[i] + group_number));
     }
+
+    // Now that all groups have been appended, call group() on the trial to
+    // ensure that our trial is registered. This resolves an off-by-one issue
+    // where the default group never gets chosen if we don't "use" the trial.
+    trial->group();

[MAD, 2012/05/07 14:47:19]

Maybe a DVLOG(1) with the chosen group ID could be useful.

   }
 }