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..864139a37865373d293442003c2de2827fd7f22d 100644
--- a/chrome/browser/chrome_browser_main.cc
+++ b/chrome/browser/chrome_browser_main.cc
@@ -1082,6 +1082,12 @@ 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.
+    int chosen_group = trial->group();
+    DVLOG(1) << "Chosen Group: " << chosen_group;
   }
 }