MD Settings: validate home button url input

chrome/browser/ui/webui/settings/md_settings_localized_strings_provider.cc

 // Copyright 2015 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/settings/md_settings_localized_strings_provider.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/i18n/number_formatting.h"
@@ skipping 289 matching lines @@
 }
 #endif
 
 void AddAppearanceStrings(content::WebUIDataSource* html_source,
                           Profile* profile) {
   LocalizedString localized_strings[] = {
     {"appearancePageTitle", IDS_SETTINGS_APPEARANCE},
     {"customWebAddress", IDS_SETTINGS_CUSTOM_WEB_ADDRESS},
     {"enterCustomWebAddress", IDS_SETTINGS_ENTER_CUSTOM_WEB_ADDRESS},
     {"homeButtonDisabled", IDS_SETTINGS_HOME_BUTTON_DISABLED},
+    {"homeUrlNotValid", IDS_SETTINGS_HOME_URL_NOT_VALID},
     {"themes", IDS_SETTINGS_THEMES},
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
     {"systemTheme", IDS_SETTINGS_SYSTEM_THEME},
     {"useSystemTheme", IDS_SETTINGS_USE_SYSTEM_THEME},
     {"classicTheme", IDS_SETTINGS_CLASSIC_THEME},
     {"useClassicTheme", IDS_SETTINGS_USE_CLASSIC_THEME},
 #else
     {"resetToDefaultTheme", IDS_SETTINGS_RESET_TO_DEFAULT_THEME},
 #endif
     {"showHomeButton", IDS_SETTINGS_SHOW_HOME_BUTTON},
@@ skipping 1686 matching lines @@
 
 #if defined(OS_CHROMEOS)
   chromeos::network_element::AddLocalizedStrings(html_source);
 #endif
   policy_indicator::AddLocalizedStrings(html_source);
 
   html_source->SetJsonPath(kLocalizedStringsFile);
 }
 
 }  // namespace settings