Fix missing tick mark on language list

1. The language is not properly set as blocked.
2. Re-generate the list items after click actions to toggle
the tick mark.

Bug: 1057051
Change-Id: I860a3224b72f00badd1c5509086aa892a33cdf7a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2080447Reviewed-by: Theresa  <twellington@chromium.org>
Commit-Queue: Lijin Shen <lazzzis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#745629}

chrome/android/java/src/org/chromium/chrome/browser/settings/languages/LanguageListPreference.java

@@ -88,7 +88,7 @@ public class LanguageListPreference extends Preference {
                 int textId = model.get(ListMenuItemProperties.TITLE_ID);
                 if (textId == R.string.languages_item_option_offer_to_translate) {
                     // Toggle current blocked state of this language.
-                    boolean state = model.get(ListMenuItemProperties.MENU_ITEM_ID) != 0;
+                    boolean state = model.get(ListMenuItemProperties.END_ICON_ID) == 0;
                     TranslateBridge.setLanguageBlockedState(info.getCode(), !state);
                     LanguagesManager.recordAction(state
                                     ? LanguagesManager.LanguageSettingsActionType
@@ -107,6 +107,10 @@ public class LanguageListPreference extends Preference {
                     LanguagesManager.getInstance().moveLanguagePosition(
                             info.getCode(), -position, true);
                 }
+                // Re-generate list items.
+                if (textId != R.string.remove) {
+                    notifyDataSetChanged();
+                }
             };
             ((LanguageRowViewHolder) holder)
                     .setMenuButtonDelegate(() -> new BasicListMenu(mContext, menuItems, delegate));