Remove enable-iframe-based-signin flag.

components/signin/core/browser/about_signin_internals.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 "components/signin/core/browser/about_signin_internals.h"
 
 #include "base/command_line.h"
 #include "base/hash.h"
 #include "base/i18n/time_formatting.h"
 #include "base/logging.h"
@@ skipping 494 matching lines @@
       FROM_HERE_WITH_EXPLICIT_FUNCTION(
           "422460 AboutSigninInternals::SigninStatus::ToValue1"));
 
   scoped_ptr<base::DictionaryValue> signin_status(new base::DictionaryValue());
   base::ListValue* signin_info = new base::ListValue();
   signin_status->Set("signin_info", signin_info);
 
   // A summary of signin related info first.
   base::ListValue* basic_info = AddSection(signin_info, "Basic Information");
   AddSectionEntry(basic_info, "Chrome Version", product_version);
-  AddSectionEntry(basic_info, "Webview Based Signin?",
-      switches::IsEnableWebviewBasedSignin() == true ? "On" : "Off");
   AddSectionEntry(basic_info, "New Profile Management?",
       switches::IsNewProfileManagement() == true ? "On" : "Off");
   AddSectionEntry(basic_info, "Account Consistency?",
       switches::IsEnableAccountConsistency() == true ? "On" : "Off");
   AddSectionEntry(basic_info, "Signin Status",
       signin_manager->IsAuthenticated() ? "Signed In" : "Not Signed In");
 
   // TODO(robliao): Remove ScopedTracker below once https://crbug.com/422460 is
   // fixed.
   tracked_objects::ScopedTracker tracking_profile2(
@@ skipping 102 matching lines @@
   }
 
   for(const std::string& account_id : accounts_in_token_service) {
     base::DictionaryValue* entry = new base::DictionaryValue();
     entry->SetString("accountId", account_id);
     account_info->Append(entry);
   }
 
   return signin_status.Pass();
 }