Updates language model on iOS.

ios/chrome/browser/prefs/browser_prefs.mm

Index: ios/chrome/browser/prefs/browser_prefs.mm
diff --git a/ios/chrome/browser/prefs/browser_prefs.mm b/ios/chrome/browser/prefs/browser_prefs.mm
index 568823b883c782edfbb9b9957163d88e013d64ab..0d72c786517d9a914dd54e915c5fc3a47cb78472 100644
--- a/ios/chrome/browser/prefs/browser_prefs.mm
+++ b/ios/chrome/browser/prefs/browser_prefs.mm
@@ -33,6 +33,7 @@
 #include "components/ssl_config/ssl_config_service_manager.h"
 #include "components/strings/grit/components_locale_settings.h"
 #include "components/sync/base/sync_prefs.h"
+#include "components/translate/core/browser/language_model.h"
 #include "components/translate/core/browser/translate_pref_names.h"
 #include "components/translate/core/browser/translate_prefs.h"
 #include "components/update_client/update_client.h"
@@ -112,6 +113,7 @@ void RegisterBrowserStatePrefs(user_prefs::PrefRegistrySyncable* registry) {
   syncer::SyncPrefs::RegisterProfilePrefs(registry);
   TemplateURLPrepopulateData::RegisterProfilePrefs(registry);
   translate::TranslatePrefs::RegisterProfilePrefs(registry);
+  translate::LanguageModel::RegisterProfilePrefs(registry);

[martis, 2017/06/01 06:49:21]

Nitpick: this list should be in alphabetical order (i.e. move this line up one).

[ramyasharma, 2017/06/02 07:20:24]

Done.

   variations::VariationsService::RegisterProfilePrefs(registry);
   ZeroSuggestProvider::RegisterProfilePrefs(registry);
   DesktopPromotionSyncService::RegisterDesktopPromotionUserPrefs(registry);