dom-ui sync: Eliminate jank when customizing sync settings.

chrome/browser/sync/sync_ui_util.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/sync/sync_ui_util.h"
 
 #include "base/command_line.h"
 #include "base/i18n/number_formatting.h"
 #include "base/i18n/time_formatting.h"
 #include "base/string_util.h"
@@ skipping 254 matching lines @@
   }
 
   if (service->HasSyncSetupCompleted()) {
     bool create_window = browser == NULL;
     if (create_window)
       browser = Browser::Create(profile);
     browser->ShowOptionsTab(chrome::kPersonalOptionsSubPage);
     if (create_window)
       browser->window()->Show();
   } else {
-    service->ShowLoginDialog();
+    service->ShowLoginDialog(NULL);
     ProfileSyncService::SyncEvent(code);  // UMA stats
   }
 }
 
 void AddBoolSyncDetail(ListValue* details,
                        const std::string& stat_name,
                        bool stat_value) {
   DictionaryValue* val = new DictionaryValue;
   val->SetString("stat_name", stat_name);
   val->SetBoolean("stat_value", stat_value);
@@ skipping 155 matching lines @@
 
       DictionaryValue* val = new DictionaryValue;
       val->SetString("stat_name", "Autofill Migration Time");
       val->SetString("stat_value", ConstructTime(info.autofill_migration_time));
       details->Append(val);
     }
   }
 }
 
 }  // namespace sync_ui_util