Implement newly designed sign-in related histograms for desktop platorms.

chrome/browser/ui/webui/signin/login_ui_test_utils.h

 // Copyright 2014 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_SIGNIN_LOGIN_UI_TEST_UTILS_H_
 #define CHROME_BROWSER_UI_WEBUI_SIGNIN_LOGIN_UI_TEST_UTILS_H_
 
 #include <string>
 
 #include "components/signin/core/browser/signin_metrics.h"
@@ skipping 27 matching lines @@
 
 // Executes JS to sign in the user in the old GAIA sign in flow.
 void SigninInOldGaiaFlow(Browser* browser,
                          const std::string& email,
                          const std::string& password);
 
 // A function to sign in a user using Chrome sign-in UI interface.
 // This will block until a signin succeeded or failed notification is observed.
 // In case |wait_for_account_cookies|, the call will block until the account
 // cookies have been written to the cookie jar.
-// |signin_source| identifies the source used to load the signin page.
+// |access_point| identifies the access point used to load the signin page.
 bool SignInWithUI(Browser* browser,
                   const std::string& email,
                   const std::string& password,
                   bool wait_for_account_cookies,
-                  signin_metrics::Source signin_source);
+                  signin_metrics::AccessPoint access_point);
 
 // Most common way to sign in a user, it does not wait for cookies to be set
 // and uses the SOURCE_START_PAGE as signin source.
 bool SignInWithUI(Browser* browser,
                   const std::string& email,
                   const std::string& password);
 
 }  // namespace login_ui_test_utils
 
 #endif  // CHROME_BROWSER_UI_WEBUI_SIGNIN_LOGIN_UI_TEST_UTILS_H_