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

chrome/browser/ui/sync/one_click_signin_helper.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/ui/sync/one_click_signin_helper.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/metrics/histogram.h"
@@ skipping 91 matching lines @@
       break;
     default:
       NOTREACHED() << "Invalid auto_accept: " << auto_accept;
       break;
   }
 
   UMA_HISTOGRAM_ENUMERATION("AutoLogin.Reverse", action,
                             one_click_signin::HISTOGRAM_MAX);
 }
 
-bool UseWebBasedSigninFlow() {
-  const bool use_web_based_singin_flow =
-      CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kUseWebBasedSigninFlow);
-  return use_web_based_singin_flow;
-}
-
 // Determines the source of the sign in.  Its either one of the known sign in
 // access point (first run, NTP, menu, settings) or its an implicit sign in
 // via another Google property.  In the former case, "service" is also
 // checked to make sure its "chromiumsync".
 SyncPromoUI::Source GetSigninSource(const GURL& url) {
   std::string value;
   chrome_common_net::GetValueForKeyInQuery(url, "service", &value);
   bool is_explicit_signin = value == "chromiumsync";
 
   chrome_common_net::GetValueForKeyInQuery(url, "continue", &value);
@@ skipping 528 matching lines @@
   if (session_index.empty() && email.empty() && auto_accept == NO_AUTO_ACCEPT)
     return;
 
   content::BrowserThread::PostTask(
       content::BrowserThread::UI, FROM_HERE,
       base::Bind(&OneClickSigninHelper::ShowInfoBarUIThread, session_index,
                  email, auto_accept, source, child_id, route_id));
 }
 
 // static
+bool OneClickSigninHelper::UseWebBasedSigninFlow() {
+  static const bool use_web_based_singin_flow =
+      !CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kUseClientLoginSigninFlow);
+  return use_web_based_singin_flow;
+}
+
+// static
 void OneClickSigninHelper::ShowInfoBarUIThread(
     const std::string& session_index,
     const std::string& email,
     AutoAccept auto_accept,
     SyncPromoUI::Source source,
     int child_id,
     int route_id) {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 
   content::WebContents* web_contents = tab_util::GetWebContentsByID(child_id,
@@ skipping 160 matching lines @@
         break;
     }
   }
 
   RedirectToNTP();
 }
 
 void OneClickSigninHelper::SigninSuccess() {
   RedirectToNTP();
 }