[CrOS Settings] Correct "moveUp" and "moveDown" key string values.

"moveUp" and "moveDown" keys currently have the incorrect values,
IDS_SETTINGS_LANGUAGES_LANGUAGES_ADD, and
IDS_SETTINGS_LANGUAGES_LANGUAGES_LIST_ORDERING_INSTRUCTIONS respectively.
This CL corrects those values to
IDS_SETTINGS_LANGUAGES_LANGUAGES_LIST_MOVE_UP and
IDS_SETTINGS_LANGUAGES_LANGUAGES_LIST_MOVE_DOWN respectively.

Bug: 1048562
Change-Id: I115cffac1828ac068fee0260653d94b5da2a4ec3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2036800Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Commit-Queue: Regan Hsu <hsuregan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#738271}

chrome/browser/ui/webui/settings/chromeos/os_settings_localized_strings_provider.cc

@@ -345,7 +345,7 @@ void AddLanguagesStrings(content::WebUIDataSource* html_source) {
       {"showImeMenu", IDS_SETTINGS_LANGUAGES_SHOW_IME_MENU},
       {"displayLanguageRestart",
        IDS_SETTINGS_LANGUAGES_RESTART_TO_DISPLAY_LANGUAGE},
-      {"moveDown", IDS_SETTINGS_LANGUAGES_LANGUAGES_LIST_ORDERING_INSTRUCTIONS},
+      {"moveDown", IDS_SETTINGS_LANGUAGES_LANGUAGES_LIST_MOVE_DOWN},
       {"displayInThisLanguage",
        IDS_SETTINGS_LANGUAGES_DISPLAY_IN_THIS_LANGUAGE},
       {"searchLanguages", IDS_SETTINGS_LANGUAGE_SEARCH},
@@ -356,7 +356,7 @@ void AddLanguagesStrings(content::WebUIDataSource* html_source) {
        IDS_SETTINGS_LANGUAGES_IS_DISPLAYED_IN_THIS_LANGUAGE},
       {"removeLanguage", IDS_SETTINGS_LANGUAGES_LANGUAGES_LIST_REMOVE},
       {"addLanguages", IDS_SETTINGS_LANGUAGES_LANGUAGES_ADD},
-      {"moveUp", IDS_SETTINGS_LANGUAGES_LANGUAGES_ADD},
+      {"moveUp", IDS_SETTINGS_LANGUAGES_LANGUAGES_LIST_MOVE_UP},
   };
   AddLocalizedStringsBulk(html_source, kLocalizedStrings);
 }