Accessibility fixes for quick unlock settings.

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 49 matching lines @@
                              size_t num_strings) {
   for (size_t i = 0; i < num_strings; i++) {
     html_source->AddLocalizedString(localized_strings[i].name,
                                     localized_strings[i].id);
   }
 }
 
 void AddCommonStrings(content::WebUIDataSource* html_source, Profile* profile) {
   LocalizedString localized_strings[] = {
       {"add", IDS_ADD},
+      {"back", IDS_BACK},
       {"cancel", IDS_CANCEL},
+      {"close", IDS_CLOSE},

[Dan Beam, 2016/10/27 00:31:37]

yeah, don't add a message here and assume it's always going to exist for a
shared UI component

[jdufault, 2016/10/27 19:13:55]

Is there a better place to inject it?

       {"confirm", IDS_CONFIRM},
       {"disable", IDS_DISABLE},
       {"learnMore", IDS_LEARN_MORE},
       {"ok", IDS_OK},
       {"save", IDS_SAVE},
       {"advancedPageTitle", IDS_SETTINGS_ADVANCED},
       {"basicPageTitle", IDS_SETTINGS_BASIC},
       {"settings", IDS_SETTINGS_SETTINGS},
       {"restart", IDS_SETTINGS_RESTART},
       {"menuButtonLabel", IDS_SETTINGS_MENU_BUTTON_LABEL},
@@ skipping 1655 matching lines @@
 #endif
   AddUsersStrings(html_source);
   AddWebContentStrings(html_source);
 
   policy_indicator::AddLocalizedStrings(html_source);
 
   html_source->SetJsonPath(kLocalizedStringsFile);
 }
 
 }  // namespace settings