Enable web-based sign in flow by default. Can use command line argument

chrome/browser/first_run/first_run.cc

 // Copyright (c) 2012 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/first_run/first_run.h"
 
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/file_util.h"
 #include "base/metrics/histogram.h"
@@ skipping 16 matching lines @@
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/search_engines/template_url_service.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/shell_integration.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/global_error/global_error_service.h"
 #include "chrome/browser/ui/global_error/global_error_service_factory.h"
 #include "chrome/browser/ui/webui/ntp/new_tab_ui.h"
+#include "chrome/browser/ui/webui/sync_promo/sync_promo_ui.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/startup_metric_utils.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/installer/util/master_preferences.h"
 #include "chrome/installer/util/master_preferences_constants.h"
 #include "chrome/installer/util/util_constants.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
@@ skipping 478 matching lines @@
   // Check the preference to determine if the bubble should be shown.
   PrefService* prefs = g_browser_process->local_state();
   if (!prefs || !prefs->GetBoolean(prefs::kShouldShowFirstRunBubble)) {
     delete this;
     return;
   }
 
   content::WebContents* contents = chrome::GetActiveWebContents(browser);
 
   // Suppress the first run bubble if a Gaia sign in page is showing.
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kUseWebBasedSigninFlow) &&
+  if (SyncPromoUI::UseWebBasedSigninFlow() &&
       gaia::IsGaiaSignonRealm(contents->GetURL().GetOrigin())) {
       return;
   }
 
   if (contents && contents->GetURL().SchemeIs(chrome::kChromeUIScheme)) {
     // Suppress the first run bubble if the sync promo is showing.
     if (contents->GetURL().host() == chrome::kChromeUISyncPromoHost)
       return;
 
     // Suppress the first run bubble if 'make chrome metro' flow is showing.
@@ skipping 17 matching lines @@
 
   // Reset the preference and notifications to avoid showing the bubble again.
   prefs->SetBoolean(prefs::kShouldShowFirstRunBubble, false);
 
   // Show the bubble now and destroy this bubble launcher.
   browser->ShowFirstRunBubble();
   delete this;
 }
 
 }  // namespace first_run