Make some code gender neutral.

chrome/browser/ui/ash/chrome_shell_delegate.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/ash/chrome_shell_delegate.h"
 
 #include <stddef.h>
 
 #include <limits>
 
@@ skipping 340 matching lines @@
   size_t admitted_users_to_be_added =
       user_manager::UserManager::Get()->GetUsersAllowedForMultiProfile().size();
   size_t logged_in_users =
       user_manager::UserManager::Get()->GetLoggedInUsers().size();
   if (!logged_in_users) {
     // The shelf gets created on the login screen and as such we have to create
     // all multi profile items of the the system tray menu before the user logs
     // in. For special cases like Kiosk mode and / or guest mode this isn't a
     // problem since either the browser gets restarted and / or the flag is not
     // allowed, but for an "ephermal" user (see crbug.com/312324) it is not
-    // decided yet if he could add other users to his session or not.
+    // decided yet if they could add other users to their session or not.
     // TODO(skuhne): As soon as the issue above needs to be resolved, this logic
     // should change.
     logged_in_users = 1;
   }
   return admitted_users_to_be_added + logged_in_users > 1;
 }
 
 bool ChromeShellDelegate::IsIncognitoAllowed() const {
   return AccessibilityManager::Get()->IsIncognitoAllowed();
 }
@@ skipping 183 matching lines @@
       NOTREACHED() << "Unexpected notification " << type;
   }
 }
 
 void ChromeShellDelegate::PlatformInit() {
   registrar_.Add(this, chrome::NOTIFICATION_LOGIN_USER_PROFILE_PREPARED,
                  content::NotificationService::AllSources());
   registrar_.Add(this, chrome::NOTIFICATION_SESSION_STARTED,
                  content::NotificationService::AllSources());
 }