Prevent public session users from changing locale via settings

chrome/browser/ui/webui/options/chromeos/cros_language_options_handler.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/webui/options/chromeos/cros_language_options_handler.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/chromeos/input_method/input_method_util.h"
 #include "chrome/browser/chromeos/login/users/user_manager.h"
 #include "chrome/browser/chromeos/profiles/profile_helper.h"
 #include "chrome/browser/extensions/extension_tab_util.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/webui/chromeos/login/l10n_util.h"
 #include "chrome/common/extensions/manifest_url_handler.h"
 #include "chromeos/ime/component_extension_ime_manager.h"
 #include "chromeos/ime/extension_ime_util.h"
 #include "chromeos/ime/input_method_manager.h"
+#include "components/user_manager/user_type.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/common/extension.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 
 using base::UserMetricsAction;
@@ skipping 154 matching lines @@
 
 base::string16 CrosLanguageOptionsHandler::GetProductName() {
   return l10n_util::GetStringUTF16(IDS_SHORT_PRODUCT_OS_NAME);
 }
 
 void CrosLanguageOptionsHandler::SetApplicationLocale(
     const std::string& language_code) {
   Profile* profile = Profile::FromWebUI(web_ui());
   UserManager* user_manager = UserManager::Get();
 
-  // Only the primary user can change the locale.
+  // Secondary users and public session users cannot change the locale.
   user_manager::User* user = ProfileHelper::Get()->GetUserByProfile(profile);
-  if (user && user->email() == user_manager->GetPrimaryUser()->email()) {
+  if (user &&
+      user->email() == user_manager->GetPrimaryUser()->email() &&
+      user->GetType() != user_manager::USER_TYPE_PUBLIC_ACCOUNT) {
     profile->ChangeAppLocale(language_code,
                              Profile::APP_LOCALE_CHANGED_VIA_SETTINGS);
   }
 }
 
 void CrosLanguageOptionsHandler::RestartCallback(const base::ListValue* args) {
   content::RecordAction(UserMetricsAction("LanguageOptions_SignOut"));
   chrome::AttemptUserExit();
 }
 
@@ skipping 103 matching lines @@
         extension_ime_util::GetExtensionIDFromInputMethodID(input_method_id);
     const extensions::Extension* extension =
         enabled_extensions.GetByID(extension_id);
     if (extension)
       entry->SetString("extensionName", extension->name());
   }
 }
 
 }  // namespace options
 }  // namespace chromeos