Start moving signin code out of browser/sync.

chrome/browser/ui/webui/sync_promo/sync_promo_handler2.cc

Index: chrome/browser/ui/webui/sync_promo/sync_promo_handler2.cc
diff --git a/chrome/browser/ui/webui/sync_promo/sync_promo_handler2.cc b/chrome/browser/ui/webui/sync_promo/sync_promo_handler2.cc
index b638cdc3085706f80f32da3da971c60f0dbe0393..1c6e522afd78dd6fe500be5bd6fcf0b8907cd377 100644
--- a/chrome/browser/ui/webui/sync_promo/sync_promo_handler2.cc
+++ b/chrome/browser/ui/webui/sync_promo/sync_promo_handler2.cc
@@ -181,13 +181,6 @@ void SyncPromoHandler2::Observe(int type,
   }
 }
 
-void SyncPromoHandler2::StepWizardForShowSetupUI() {
-  ProfileSyncService* service =
-      ProfileSyncServiceFactory::GetInstance()->GetForProfile(
-          Profile::FromWebUI(web_ui_));
-  service->get_wizard().Step(SyncSetupWizard::GetLoginState());
-}
-
 void SyncPromoHandler2::ShowSetupUI() {
   // We don't need to do anything here; The UI for the sync promo is already
   // displayed.