Language Settings has been approved for launch in M77.

Default enable the feature "LanguageSettings" for M79.

Bug: 1008433
Change-Id: I179da2485bb4b50481c2fea46c2e8216f6e29e7c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1825922Reviewed-by: Mark Pearson <mpearson@chromium.org>
Commit-Queue: Peter Lee <pkl@chromium.org>
Cr-Commit-Position: refs/heads/master@{#704631}

ios/chrome/browser/ui/ui_feature_flags.cc

@@ -29,7 +29,7 @@ const base::Feature kOmniboxUseDefaultSearchEngineFavicon{
     "OmniboxUseDefaultSearchEngineFavicon", base::FEATURE_DISABLED_BY_DEFAULT};
 
 const base::Feature kLanguageSettings{"LanguageSettings",
-                                      base::FEATURE_DISABLED_BY_DEFAULT};
+                                      base::FEATURE_ENABLED_BY_DEFAULT};
 
 const base::Feature kOptionalArticleThumbnail{"OptionalArticleThumbnail",
                                               base::FEATURE_ENABLED_BY_DEFAULT};